Single carrier frequency domain equalization

Single carrier frequency domain equalization. One prominent advantage over OFDMA is that A novel approach based on single-carrier cyclic prefix-assisted CDMA has been proposed to overcome the disadvantages of single-carrier CDMA and multicarrier modulation. Turbo equalization is originally proposed in the time domain equalization (TDE) and then Interleaved frequency division multiple access (IFDMA) combined with the single carrier with frequency domain equalization (SC/FDE) are investigated and simulated in space coding multiple input multiple output (MIMO) environments. INTRODUCTION In mobilewireless communications,the system performance is affected by time- and/or frequency-selective fading caused by multipath channels. Wireless Commun. One topic focuses on the Single Carrier Frequency Domain Equalization (SC-FDE), which is a promising technique to mitigate the multipath effect in the broadband wireless communication. The resulting system is efficient and robust in frequency selective fading channels that SC/FDE as a broadband Single carrier (SC) block transmission with frequency domain equalization (FDE) in multi-path fading channels is considered. The capacity performance of SC-FDE system is compared with that of Figure 1: General model of FFT-SSE and FFT-FSE for single-carrier frequency-domain equalization. To simplify the computational operations at the transmitter and the sensory nodes, a single carrier frequency domain equalizer is proposed and amplify-and-forward Single carrier systems with frequency domain equalization (SC-FDE) have been recently proposed for optical wireless systems as alternatives to optical orthogonal frequency division multiplexing (OFDM) to reduce the peak-to-average power ratio (PAPR) of the transmitted signal and improve the system performance. Higher data rates and large processing gain can be achieved by PCSS The results show that a CO-SC-FDE system is very tolerant of CD and PMD and can achieve high transmission rates over single mode fiber without optical dispersion compensation. Google Scholar Li B, Huang J, Zhou S, Ball K, Stojanovic M, Freitag L, Willett P: MIMO-OFDM for high-rate underwater acoustic Nov 21, 2023 · Single-carrier frequency-domain turbo equalization with various soft interference cancellation schemes for MIMO systems,” Single-carrier frequency-domain turbo equalization without cyclic prefix or zero padding for underwater acoustic communications,” J. Preamble Design. 31-Gbps underwater wireless optical communication employing Nyquist single carrier frequency domain equalization with noise prediction. Instead of CP Abstract: Single carrier frequency domain equalization (SC-FDE) is an alternative technology to orthogonal frequency division multiplexing to deal with the frequency selective channel fading effect in broadband wireless communication systems. With two transmit antennas, the scheme is shown to achieve significant diversity gains at low complexity over Frequency-Domain Equalization in OFDM and Single-Carrier Modulation, Fig. With respect to our earlier results, we include channel coding and frequency-domain interleaving which are necessary for OFDM systems on multipath To solve the problem of performance limitation of direct sequence (DS) spread spectrum system in complex multipath environment, a parallel combinatory spread spectrum (PCSS) framework that combines single carrier frequency domain equalization (SCFDE) is proposed. 1007/s11424-010-9275-2 Corpus ID: 18323635; Systematic design of single carrier overlap frequency domain equalization @article{Bocquet2010SystematicDO, title={Systematic design of single carrier overlap frequency domain equalization}, author={Wladimir Bocquet and Kazunori Hayashi and Hideaki Sakai}, journal={Journal of An overview of single-carrier frequency domain equalization (SC-FDE) and its Wireless applications is provided, and the brief history and system model of SC-F DE is reviewed, and several possible future research topics about SC- FDE are presented. Do, Simin Chen, Trevor Anderson, and Efstratios Skafidas Find other works by these authors . In this paper we propose a robust and non-iterative scheme to enhance Channel estimation and tracking pose real problems in wideband single-carrier wireless communication systems employing multiple transmit and receive antennas. Nov 27, 2002 · The application of frequency domain equalization techniques makes single carrier modulation a potentially valuable alternative to OFDM, especially in regard to its robustness to RF implementation 2. Based on the analysis of signal-to-interference-plus-noise ratio (SINR) of the equalizer output for each symbol, the authors adaptively determine the block of the overlap FDE, In this paper, we present coherent optical single carrier transmission (COSC) using overlap frequency domain equalization (OFDE) for the chromatic dispersion (CD) compensation. Based on the analysis of the SINR of each symbol at the FDE output, an adaptive This paper present an alternative promising approach to ISI mitigation by the use of single-carrier (SC) modulation combined with frequency-domain equalization To solve this problem, an algorithm for prefiltered single-carrier frequency-domain equalization (PF-SCFDE) is presented in this paper. In this paper, we employ an interpolation The GD spread determines the temporal memory required in MIMO time-domain equalization (TDE) of single-carrier modulation [1,18–20], while it determines the fast Fourier transform (FFT) block length in MIMO frequency-domain equalization (FDE) of single-carrier modulation [18] or in orthogonal frequency-division multiplexing Single carrier (SC) transmission with frequency domain equalization (FDE) has drawn great attention as an attractive alternative to OFDM, especially in the uplink of radio frequency communications, and underwater acoustic communications [6]– [8]. McLernon}, This paper considers a robust SC-FDE design with imperfect channel knowledge at a receiver due to the channel estimation error, and proposes two robust FDE schemes in coded systems, where feedback from the channel decoder is utilized to improve the equalization and/or channel estimation performance. With a 3-dB bandwidth of 200 MHz, the proposed system with the frequency domain equalization and noise prediction (FDE-NP) scheme can achieve a maximal net data rate of 3. 7842231 (1-6) Online publication date: 4-Dec-2016 Single carrier frequency domain equalization (SC-FDE) is an important means of high data rate communication. J. Tran, Cuong C. The proposed hybrid time-frequency domain equalizer includes two parts: a multi-channel frequency domain equalizer and a single channel adaptive time domain decision Abstract: Single-carrier frequency-domain equalization (SC-FDE) is a promising technique for coherent high-rate underwater acoustic (UWA) communications. 4156/JCIT. I. Channel estimation and tracking pose real problems in wideband single-carrier wireless Jun 8, 2016 · Abstract: Single carrier frequency domain equalization (SC-FDE) is an alternative technology to orthogonal frequency division multiplexing to deal with the frequency selective channel fading effect in broadband wireless communication systems. Adaptive Channel Estimation. (2017) studied frequency-domain turbo equalization based on a single-carrier MIMO underwater acoustic communication system. et al. 16a standard, which led to the WiMAX wireless metropolitan area concept, has three transmission modes: two based on versions of OFDM and one based The single carrier system transmits a single carrier, modulated at a high symbol rate. To equalize such long channels, conventional single-carrier time-domain equalization becomes infeasible due to high computational complexity. In most cases, frequency-selective Abstract: Coherent optical single-carrier frequency-domain equalization (CO-SCFDE) techniques especially frequency-division-multiplexing scheme (CO-SCFDM) is theoretically and experimentally studied. Equalization Techniques for Single-Carrier Modulations. J Wireless Com Network ware impairments make single carrier with frequency domain equalization an attractive alternative to OFDM, especially for cost- and power consumption-sensitive next- There are approximately log M multiplies per symbol, as in OFDM. This paper investigates the performance of multi-antenna SC-FDE under cyclic-delay diversity (CDD) and Alamouti signaling. The underlying channels are time-varying intersymbol interference (ISI) channels, where time variation arises from the relative motion between the transceivers, which induces An iterative frequency domain equalization approach for coded single-carrier block transmissions over frequency selective channels is developed by using the rec. Single carrier frequency This paper presents the periodic spectrum transmission for single-carrier frequency-domain equalization (SC-FDE) employing space-time transmit diversity (STTD). Inbothapproaches,acyclicprefix(CP)isappended to each block for eliminating the interblock interference and converting, with respect to the useful part of the transmitted A compressed sensing sparse channel estimation method for unique word prefixed single carrier frequency domain equalization Abstract: In this paper, a compressed sensing (CS) based sparse channel estimation method is proposed for Unique Word (UW) Prefixed SC-FDE employed in sparse wireless channels, sparse channel estimation is formulated two decades, including the single carrier with time-domain decision feedback equalizer (SC-TDE) [2,3], orthogonal frequency-division multiplexing (OFDM) [4], single-carrier with frequency domain equalization (SC-FDE) [5–8], and time reversal communications [9,10]. monte-carlo-simulation sc-fde frequency-domain-equalization Updated Feb 19, 2021; MATLAB; Improve this page Add a description, image, and links to the frequency-domain-equalization topic page so that developers can more easily learn about it. In the proposed system, multiple Equalization is accomplished in the frequency domain by performing a point-by-point multiplication of R k and the equalizer C k. STSK-aided SC-FDE, or SSF, ensures space-time and frequency diversity in dispersive channels, but can only support suboptimal linear receiver schemes. This chapter contains sections titled: Advantages of SC-FDE over OFDM for Millimeter Wave Systems. Turbo equalization is originally proposed in the time domain equalization (TDE) and then Simulation results showed that the H-DFE method achieved a much lower bit-error-rate performance than MMSE and ZF schemes, and the results in real underwater acoustic channels also proved this conclusion. We proposed hybrid time-frequency domain Turbo equalization (HTFDTE) and bidirectional time-frequency domain Turbo equalization (Bi-HTFDTE) for multiple-input multiple-output (MIMO) single carrier (SC) underwater acoustic system with PN code to improve the quality of This paper proposes an optimal ordering algorithm in the sense of minimum sum-MSE for the SC-FDE MIMO scheme with SIC, and further proposes a low complexity sub-optimal ordering algorithm. In this paper, we present an adaptive equalization algorithm for implementation in multiple-input multiple A frequency-domain turbo equalization (FDTE) scheme without cyclic prefix (CP) or zero padding is proposed for single-carrier, multiple-input-multiple-output underwater acoustic communication. When compared to orthogonal frequency-division multiplexing (OFDM) systems, they have Chen et al. In an initial process of the proposed receiver, a cyclic prefix (CP) The design of digital signal processing (DSP) algorithms for training-aided coherent optical single-carrier frequency-domain equalization (SC-FDE) systems are presented and frame timing synchronization and frequency offset compensation algorithms based on Golay sequences are developed, which provide bandwidth-efficient solution with robust Interleaved frequency division multiple access (IFDMA) combined with the single carrier with frequency domain equalization (SC/FDE) are investigated and simulated in space coding multiple input multiple output (MIMO) environments. Similar to OFDM (orthogonal frequency division multiplexing), SCFDE attach a cyclic prefix (CP) to the transmitted symbol to eliminate inter-carrier interference (ICI) and converts SUMMARY Single-carrier (SC) multiple access is a promising uplink multiple access technique because of its low peak-to-average power ratio (PAPR) property and high frequency diversity gain that is achievable through simple one-tap frequency-domain equalization (FDE) in a strong frequency-selective channel. The proposed scheme utilizes only even-numbered samples within a time domain data block to createa periodical spectrum which provides frequency redundancy. 2015. We propose a novel SCFDE space–time scheme for CDMA that achieves multiuser-interference free reception and performs well where c is the speed of light, L is the transmission distance, D is the dispersion coefficient of the optical fiber, f is the frequency at the baseband signal, and f c is the center frequency of the optical signal. Most of the existing FDE algorithms are limited to slow time-varying fading channels due to the lack of an accurate channel estimator. Abstract: Single carrier frequency division multiple access (SC-FDMA) which utilizes single carrier modulation at the transmitter and frequency domain equalization at the receiver is a technique that has similar performance and essentially the same overall structure as those of an OFDMA system. Frequency-domain techniques require the insertion of a cyclic prefix to convert linear convolution into circular convolution and can be limited by noise enhancement. The introduce Jun 15, 2010 · Zhang J, Zheng YR, Xiao C: Frequency-domain equalization for single carrier MIMO underwater acoustic communications. Broadband wireless access systems deployed in residential The aim of the paper is to compare multicarrier and single carrier modulation schemes for radio communication systems. The SC-FDE demodulator in Figure 2 consists of a down-converter, PN remover, FFT, channel estimator, frequency domain equalizer, and inverse Fast Fourier Transform (IFFT). 1088127 Corpus ID: 62130769; Broadband wireless using single carrier and frequency domain equalization @article{Falconer2002BroadbandWU, title={Broadband wireless using single carrier and frequency domain equalization}, author={David Falconer and Sirikiat Lek Ariyavisitakul}, journal={The 5th International Recent research has shown that chirp spread spectrum (CSS) is an attractive technology in broadband wireless communications and the single carrier frequency domain equalization (SC-FDE) is widely used in practical applications for its low complexity and high efficiency. Space-time block transmission and single carrier modulation are adopted at the transmitter to combat the inter-symbol interference resulted from, the multipath delay. In this paper, we analyzed the single-carrier fractional Fourier domain equalization (SC-FrFDE) system Zhe P Zhu Y (2016) Robust Frequency-Domain Equalization for Single-Carrier Broadband MIMO Systems 2016 IEEE Global Communications Conference (GLOBECOM) 10. Feher-patented quadrature phase shift keying (fqpsk) In , single-carrier frequency-domain equalization (SC-FDE) followed by phase compensation is proposed for single-carrier systems, and the frequency-domain equalization for multiple-carrier orthogonal frequency division multiplexing (OFDM) systems has been proposed in [13, 14]. cn Abstract. The core idea is to use time reversal pre-processing to generate a delta-like equivalent impulse response to facilitate robust reconstruction of prefixes at This paper addresses single-carrier transmission with frequency-domain equalization (SCT/FDE), which is an alternative to orthogonal frequency-division multiplexing (OFDM). However, these SC-FDE In this case, frequency domain equalization techniques can be used. , Lin, X. Considering frequency selective fading in the underwater acoustic channel, there are some disadvantages with respect to the traditional SC-FDE. 1 The single-carrier frequency-domain equalization method (SC-FDE) 2,3 has received much attention for high-rate UWA communications in recent years. This paper deals with the capacity behavior of single carrier modulation with frequency-domain equalization (SC-FDE) systems Single-carrier (SC) transmission using frequency domain equalization (FDE) based on the minimum mean square error (MMSE) criterion is an efficient way to combat Single-carrier frequency domain equalization (SC-FDE) has been shown to be an attractive transmission scheme for broadband wireless channels. 2 Simplified communication chains of OFDM (top figure) and SC-FDE (bottom figure) Frequency-Domain Equalization in OFDM and Single-Carrier Modulation, Fig. An alternative to estimating the channel is to adaptively equalize the received symbols. 31-Gbps underwater wireless optical communication employing Nyquist single carrier frequency domain equalization with The application of frequency domain equalization techniques makes single carrier modulation a potentially valuable alternative to OFDM, especially in regard to its robustness to RF implementation impairments. In this regard, single-carrier frequency-domain equalization (SC-FDE) system has been advocated as an attractive alternative to OFDM. 1109/ACCESS. Motivated by the recent index modulation (IM) concept in the spatial, frequency, and space-time domains, we Single-carrier (SC) transmission using frequency domain equalization (FDE) based on the minimum mean square error (MMSE) criterion is an efficient way to combat May 31, 2012 · DOI: 10. 10 Simulations show that the performance of the proposed iterative decision feedback equalizer in the frequency domain for single- carrier systems is similar to the traditional iterative block DFE under various multipath fading channels but with lower complexity. 1109/WPMC. In Turbo-CPR, the decoder output is incorporated in the process of equalization, i. Multiple-input multiple-output (MIMO) spatial multiplexing systems [3] increase the capacity significantly over single-input single Single carrier (SC) transmission with frequency domain equalization (FDE) has drawn great attention as an attractive alternative to OFDM, especially in the uplink of radio frequency communications, and underwater acoustic communications [6]– [8]. R. For this reason, single-carrier with frequency-domain equalization (SC-FDE) and OFDM are nowadays the most popular broadband transmission techniques. The TFD-TE scheme is to couple a multi-channel frequency 56-m/3. Another topic targets on the energy efficiency optimization in a multiple In this paper, the effects of carrier frequency offset (CFO) and sampling time offset (STO) on the performance of single-carrier block transmission with frequency-domain equalization (SC-FDE) and Abstract: Single-carrier frequency domain equalization (SCFDE) modulation is a promising technique for highly dispersive channels in broadband wireless communications. edu. com Royal Institute of Technology (KTH) Osquldasväg 10, 100 44 Stockholm, Sweden A novel frequency-domain equalizer for single-carrier systems characterized by severe inter-symbol interference channels that can remove both precursor and postcursor ISI, and alleviate the impact of error-propagation, and has lower computational complexity than the present iterative block equalizers. Different single carrier and multicarrier transmission systems are simulated with time-variant transfer functions measured with a wideband channel sounder. Abstract Recent research has indicated that single carrier frequency domain equalization (SC-FDE) is an attractive technology for Mitigation of phase noise in single carrier frequency domain equalization systems Abstract: In this paper we study the effect of phase noise (PHN) in a single carrier cyclic prefix (SCCP) system operating with a known cyclic prefix. We show that when com-bined with frequency domain equalization In this overview paper we survey recent results on single carrier systems with frequency domain equalization (SC-FDE), including comparisons and compatibilities with OFDM, This article surveys frequency domain equalization (FDE) applied to single-carrier (SC) modulation solutions. In this paper, we present an adaptive equalization algorithm for implementation in multiple-input multiple Recent research has shown that single carrier frequency domain equalization (SC-FDE) is an attractive technology for broadband wireless communications for its advantages such as lower peak-to-average power ratio and reduced sensitivity to carrier frequency offset, when compared to orthogonal frequency-division multiplexing (OFDM) systems. Single-carrier transmission with frequency-domain This paper investigates mobile broadband communications, which undergo time-varying radio channels with large multipath delay spread. The simulation results In this paper we study the effect of phase noise (PHN) in a single carrier cyclic prefix (SCCP) system operating with a known cyclic prefix. Residual inter-symbol interference is suppressed by time domain equalization with small tap size. Frequency single-carrier frequency domain equalization (SC-FDE), vector-ized discrete Zak transform (VDZT). ISSUE9. Symbol-spacedequalizer Suppose that cSSE(m) is the symbol-rate impulse response of Simulation results show that sc-fde system based on cc-bcd-fqpsk modulation has higher spectral efficiency than linear modulation qpsk and is an effective approach for eliminating isi and using nonlinear high power amplifier. 44 Corpus ID: 14810759; A comparison of frequency domain equalization in underwater acoustic single carrier system @article{Shen2012ACO, title={A comparison of Dec 28, 2012 · Single-carrier (SC) block transmission with cyclic prefix (CP) is a method with several advantages that has been incorporated into standards. The key aspect is mildly frequency-selective subband processing instead of a simple complex gain factor per subband. In: Shen, X. China. The sin-gle carrier modems with frequency-domain equalization have similar performance and complexity as orthogo-nal frequency-division multiplexing, yet less sensitive to radio frequency impairments. Frequency domain equalization in a SC system is simply the frequency domain analog of what is done by a conventional linear time domain equalizer. The resulting system is efficient and robust in frequency selective fading channels that SC/FDE as a broadband In this paper, we present coherent optical single carrier transmission (COSC) using overlap frequency domain equalization (OFDE) for the chromatic dispersion (CD) compensation. Furthermore, the specific structure of SC/FDE allows a better performance as compared to the classical DFE equalizer Many methods have been proposed to solve the ISI and Doppler effect and achieve high-speed and reliable UWA communication, such as single carrier time domain equalization (SC-TDE) [3], [4], time-reverse communication (TR) [5], [6], [7], orthogonal frequency division multiplexing (OFDM) [8], [9], [10], and single-carrier frequency DOI: 10. Frequency-domain equalization (FDE) is a computationally efficient method to recover In this paper, we employ a reconfigurable intelligent surface (RIS) to boost the single-carrier frequency-domain equalization (SC-FDE) transmission for both single- and multi-antenna broadband wireless communications. Channel estimation and tracking pose real problems in wideband single-carrier wireless Bandwidth-efficient frequency-domain equalization for single carrier multiple-input multiple-output underwater acoustic communications Jian Zhang, Yahong Rosa Zheng; Bandwidth-efficient frequency-domain equalization for single carrier multiple-input multiple-output underwater acoustic communications. We therefore introduce a turbo equalizer for SSF in frequency-selective multipath The proposed hybrid time-frequency domain equalization method for pseudorandom noise (PN) based single-carrier block transmissions includes two parts: a multi-channel frequency domain equalizer and a single channel adaptive time domain decision feedback equalizer (DFE). Feb 1, 2017 · In order to reduce the inter-channel correlation arising from the activated symbol indices, a symbol mapping algorithm is proposed, which further improves the achievable error-rate performance of the SC-IM scheme. In this paper, we consider iterative FDE (IFDE) with explicit frequency-domain channel estimation (FDCE) for non-cyclic-prefixed SC The turbo principle applied jointly to FDE, channel decoding and channel estimation is considered and it is shown that they can provide performance comparable to the time-domain turbo equalization methods but with lower complexity. Different from the existing RIS-SC-FDE schemes that use an RIS to harvest cyclic delay diversity with a limited beamforming Experimental demonstration of single-stage frequency domain equalization for single-carrier coherent receivers Abstract: Low complexity, single-stage frequency-domain equalization supported by blind CD estimation and training-aided 2×2 MIMO channel estimation is proposed and experimentally demonstrated in a 32 GBaud Nyquist PDM DOI: 10. Single-carrier systems using frequency domain equalization (SC-FDE)[1, 2] were proposed to reduce the computational complexity required to equalize in the time-domain single-carrier transmissions through channels with a long impulse response. This paper describes a three-step frequency-domain equalization scheme for multiple-input multiple-output (MIMO) underwater acoustic communication. In this paper, an improved SC-FDE An adaptive equalization algorithm for implementation in multiple-input multiple-output MIMO single-carrier systems with frequency-domain equalization (FDE) with a novel method of reducing the overhead required to train the adaptive equalizer. This paper present an alternative promising approach to ISI mitigation by the use of single-carrier (SC) modulation combined with frequency-domain equalization (FDE). It is an alternative This paper expounds the principle and implementation scheme of SC-FDE system, simulates and compares several main frequency domain equalization algorithms An alternative promising approach to ISI mitigation is the use of single-carrier (SC) modulation combined with fre- quency-domain equalization (FDE). 2459054 Corpus ID: 10827241; Single-Carrier Frequency-Domain Turbo Equalization With Various Soft Interference Cancellation Schemes for MIMO Systems This paper deals with the capacity behavior of single carrier modulation with frequency-domain equalization (SC-FDE) systems in broad-band multipath fading environments for the case where the channel is unknown at the transmitter and perfectly known at the receiver. 48 Gbps, which is 17. The earlier 802. Turbo equalisation and cyclic prefix reconstruction are combined together to eliminate the normally on the concept of space-time shift keying (STSK) for single-carrier frequency domain equalization (SC-FDE). Since f c >> f, (f c − f) 2 can be approximated as f c 2. This paper describes a frequency-domain equalization (FDE) method for single carrier (SC) multiple input multiple output (MIMO) underwater acoustic communications with multiple transducer transmitters and multiple hydrophone receivers. To mitigate the inter-symbol interference (ISI), a frequency domain equalizer combined with a time-domain Single-carrier (SC) waveform has a lower peak-to-average power ratio than multi-carrier waveform. Different from the existing RIS-SC-FDE schemes that use an RIS to harvest cyclic delay diversity with a limited beamforming Mar 1, 2018 · Traditional frequency domain equalization schemes rely on the use of periodic prefixes, which bring a loss of spectral efficiency in the already-bandlimited underwater channel. Recently orthogonal frequency This paper proposes a bit-interleaved coded multilevel modulation for single-carrier frequency-domain equalization (SC-FDE). Furthermore, it can exploit the channel frequency-selectivity through frequency-domain equalization (FDE) to improve the transmission performance. However, for high-bandwidth efficiency and high-power-efficiency systems, the channel An alternative promising approach to ISI mitigation is the use of Single-Carrier Frequency Domain Equalization. Expand Apr 1, 2002 · This article surveys frequency domain equalization (FDE) applied to single-carrier (SC) modulation solutions and discusses similarities and differences of SC and OFDM systems and coexistence possibilities, and presents examples of SC-FDE performance capabilities. However, its performance would degrade a lot if the channel is fast time-varying. Acoust. For channels with severe delay spread, frequency domain equal- We propose a nonlinear hybrid decision feedback equalizer (NHDFE) for single-carrier (SC) block transmission systems with nonlinear transmit high power amplifier (HPA), which significantly outperforms our previous nonlinear SC frequency-domain equalization (NFDE) design. We introduce required pre Single-carrier code-division multiple access (SC-CDMA) with frequency-domain equalization (FDE) has attracted renewed interest in CDMA due to its lower peak-to-average power ratio (PAPR) and higher frequency diversity than orthogonal frequency-division multiple access (OFDMA), increased robustness to asynchronous multipath and A single carrier (SC) receiver scheme with bandwidth-efficient frequency-domain equalization (FDE) for underwater acoustic (UWA) communications employing multiple transducers and multiple hydrophones is proposed. In this paper, a time-frequency domain turbo equalization (TFD-TE) scheme is proposed for single-carrier modulation. Iterative FDTE and multi-channel equalization are utilized to improve the BER performance and the output SNR. In the case of OFDM (orthogonal frequency division multiplexing), the inverse FFT transforms the complex amplitudes of the individual subcarriers at the transmitter However, OFDM signals have large peak-to-average power ratio (PAPR) (10–12 dB) which makes IN detection difficult, and the systems are sensitive to carrier frequency offsets (CFOs). Single-carrier frequency-domain equalization (SC-FDE) with multi-input multi-output (MIMO) has been recognized as an alternative technology To reduce the signal processing complexity, our investigations are based on a single carrier system with frequency domain equalization (SC/FDE) which carries out the feed-forward equalization in the frequency domain. When the SC-FDE is used Single-carrier (SC) block transmission with frequency-domain equalization (FDE) offers a viable transmission technology for combating the adverse effects of long dispersive channels encountered in high-rate broadband wireless communication systems. Feher-patented quadrature phase shift keying (fqpsk) modulation is proposed for single-carrier frequency domain equalization (sc The application of frequency domain equalization techniques makes single carrier modulation a potentially valuable alternative to OFDM, especially in regard to its robustness to RF implementation Real Time Noise Power Estimation for Single Carrier Frequency Domain Equalization Abstract: Wireless broadband high-speed data transmission technology is one of the key technologies used to realize mutual communication between various unmanned vehicles, unmanned ships and unmanned aerial vehicles in the future civil and military fields. In this overview paper we survey recent results on single carrier systems with frequency domain equalization (SC-FDE), including Research on single carrier frequency domain equalization system based on FQPSK modulation Meng Zhang1,* and Zhisong Bie1,a 1Beijing University of Posts and Telecommunications, Xitucheng Road 10#, Haidian District, Beijing, P. 3 Conventional nonlinear FDE scheme IDFT Decision DFT Yk F(l) k S˜(l) k s˜ (l) n B(l) k 56-m/3. . A block diagram for the receiver is shown in Figure 1 b. Frequency domain linear equalization in an SC system is simply the frequency domain analog of what is done by a conventional linear time domain equalizer. In recent years, single-carrier system has again become an interesting and The SC-FDE(single carrier-frequency domain equalizer) is a field that gathers more and more interest as a modulation scheme for the broadband wireless communications, for simple channel In this paper, the channel estimation and signal‐to‐noise ratio (SNR) estimation technique of single‐carrier frequency domain equalization (SC‐FDE) system under low SNR in aeronautical multipath channel are studied, a SNR estimation algorithm which is easy to implement in engineering and an improved LS channel estimation The expected capability of the SC-FDE is always poorer than that of OFDM in frequency-selective fading channel, and it is closer to of orthogonal frequency-division multiplexing in channel with lower delay spread. Iterative Frequency Domain Equalization With Generalized Approximate Message Passing Abstract: An iterative frequency domain equalization approach for coded In this paper, we propose a novel dual-mode time- domain single-carrier index modulation (DM-SCIM) scheme, where two constellation modes are used for carrying index information further to modulated symbols, hence increasing the transmission rate. 2. The single carrier modems with frequency-domain Single-carrier frequency-domain equalization (SC-FDE) has recently been receiving much attention as an attractive method for broadband wireless communications for its advantages such as lower peak single-carrier modem schemes are considered, i. Nandakumar}, journal={2009 International Conference on Single-carrier modulation using frequency domain equalization is a promising alternative to OFDM for highly dispersive channels in broadband wireless communications [14,15]. 1109/WCNC. We describe a new iterative frequency-domain decision-feedback equalizer (DFE) with reduced complexity compared to previously published schemes. @article{Chen202056m331GbpsUW, title={56-m/3. In this paper, we consider a robust SC-FDE design with imperfect channel knowledge at a Key words Overlap frequency domain equalization, single carrier transmission, SINR. Single-carrier (SC) block transmission with frequency-domain equalisation (FDE) An SC system transmits a single carrier, modu-lated, for example, with QAM, at a high symbol rate. Jun 20, 2004 · An adaptive equalization algorithm for implementation in multiple-input multiple-output MIMO single-carrier systems with frequency-domain equalization (FDE) with a novel method of reducing the overhead required to train the adaptive equalizer. In this paper we propose a hybrid time-frequency domain equalization method for pseudorandom noise (PN) based single-carrier block transmissions. 31-Gbps underwater wireless optical communication employing Nyquist single carrier frequency domain equalization with noise prediction Opt Express. 6214505 Corpus ID: 16114509; Mitigation of phase noise in single carrier frequency domain equalization systems @article{Asim2012MitigationOP, title={Mitigation of phase noise in single carrier frequency domain equalization systems}, author={Muhammad Asim and Mounir Ghogho and Desmond C. Single-carrier block transmission (SCBT) has a It is shown that the order-two spatial diversity gain achieved by this distributed STBC SC-FDE scheme is higher than that of conventional without-relay-assisted transmissions over frequency-selective channels. It is shown This work focuses on the IFI cancelation (IFIC) in single-carrier transmissions and develops a soft-symbol-based iterative receiver, referred to as IFIC-FD-DFE, which has been demonstrated via comparisons with several FDE schemes in the current literature. 2 The use of single-carrier modulation and frequency domain equalization, by processing the FFT of the received signal [Sar94], [Sar95], [Ber95], [Kad97] has several attractive features: o Single-carrier modulation has reduced peak-to-average ratio requirements than OFDM thereby Single-carrier frequency-domain equalization (SC-FDE) has recently been receiving much attention as an attractive method for broadband wireless communications for its advantages such as lower peak This paper investigates the detection schemes for single-carrier underwater acoustic communications over the severe time-dispersive channels. An inverse-FFT is applied to the The application of frequency domain equalization technique makes single carrier modulation a valuable alternative resisting multiple-path and time-varying In this overview paper we survey recent results on single carrier systems with frequency domain equalization (SC-FDE), including comparisons and compatibilities with OFDM, Single-carrier frequency-domain equalization (SC-FDE) with multi-input multi-output (MIMO) has been recognized as an alternative technology to orthogonal This paper proposes a method to equalize long fading channel multipath propagation using single carrier time domain equalization, and shows its ability to Summary. In the first iteration of the FDTE, the received continuous data stream is divided into consecutive blocks Dec 10, 2007 · In this paper, we combine the transmit Tomlinson-Harashima precoding (THP) technique with single carrier frequency domain equalization (SC-FDE) and propose two Jul 2, 2014 · Single-carrier (SC) block transmission with frequency-domain equalization (FDE) offers a viable transmission technology for combating the adverse effects of long dispersive channels encountered in high-rate broadband wireless communication systems. @article{Yin2020FrequencydomainEW, title={Frequency-domain equalization with interference rejection combining for single carrier multiple-input multiple-output In this paper, a Turbo aided Cyclic Prefix (CP) reconstruction scheme, termed Turbo-CPR, is proposed for Single-Carrier systems with Frequency-Domain Equalization (SC-FDE) that employ insufficient CP in the transmitter. 3. Soc. In this paper, we extended the conventional space-time block-codes single-carrier frequency-domain equalization In [9], [10], hybrid-domain equalization architecture is proposed for single carrier systems which is known as decision feedback equalizer for single carrier frequency domain equalization (SC-FDE In this paper, index modulated single-carrier with frequency domain Turbo equalization is investigated for UWA communications. 1. 11 wireless standards. , This paper investigates the use of complex-modulated oversampled filter banks (FBs) for frequency-domain equalization (FDE) in single-carrier systems. com Royal Institute of Technology (KTH) Osquldasväg 10, 100 44 Stockholm, Sweden Single-carrier frequency domain Equalization (SC-FDE) systems, which offer similar complexity and performance to Orthogonal Frequency Division Multiplexing (OFDM) systems but enjoy a lower peak-to A new bandwidth efficient single carrier system with frequency domain equalisation is proposed. Serial modulation (SM), being a direct counterpart of the well-known Single Carrier Frequency Domain Equalization on a Real-Time DSP-Based MIMO Test-Bed Andrew Logothetis, Afif Osseiran Per Zetterberg Ericsson Research SE-164 80 Stockholm, Sweden {Andrew. For mobile radio and terrestrial broadcast applications, we compare orthogonal frequency-division multiplexing (OFDM) and single-carrier transmission with frequency-domain equalization. In single polarization transmission, 25-Gb/s COSC In this paper, we introduce a novel adaptive frequency-domain equalizer structure for single-carrier frequency domain equalization communications. In SC Shallow seawater acoustic channel has serious multipath effect. Am. 1 Introduction Since the 90’s, single carrier transmission with frequency domain equalization (SC-FDE) has been thoroughly studied and has been drawing much attention due to the effectiveness and simplicity of the transceiver[1]. SC-FDE is a block transmission. In the proposed method, overlapping and saving (OS) and frequency Abstract: Single carrier frequency domain equalization technology is an important component of physical layer technology for broadband wireless access system, which can effectively avoid the lack of great complexity for single-carrier time domain equalization, as well as the high PAPR for orthogonal frequency division multiplexing In this paper, Traditional frequency domain equalization schemes rely on the use of periodic prefixes, which bring a loss of spectral efficiency in the already-bandlimited underwater channel. Note that f is the frequency not of the optical signal but of the electrical signal and −F s /2 ≤ f ≤ F s /2, Simulation results show that the performance of the proposed simplified DFE operating in the frequency domain of single-carrier systems is similar to the traditional iterative block DFE under various multipath fading channels, but it imposes a much lower complexity than the latter. In this paper, a novel CSS-FDE approach is proposed to resist the The coarse estimation of our joint estimation method exploits multiple preamble symbols for flexible single-carrier frequency-domain equalization (SC-FDE) frame structures to calculate correlation Motivated by the recent index modulation (IM) concept in the spatial, frequency, and space-time domains, we propose a novel broadband single-carrier (SC)-based IM (SC-IM) scheme as well as its low-complexity frequency-domain equalization (FDE) algorithm. SC-FDE is a promising low-complexity approach for mitigating intersymbol DOI: 10. , a traditional modulation scheme with linear equalization at the receiver, and a single-carrier modulation with cyclic prefix, frequency-domain equalization and FFT-based processing at the receiver; these two schemes are compared with a conventional MIMO-OFDM transceiver structure. , a traditional modulation scheme with linear equalization at the receiver, and a single-carrier modulation with cyclic prefix, frequency-domain equalization and FFT-based processing at the receiver; these two schemes are compared with a conventional MIMO-OFDM SC-FDE (Single Carrier Frequency Domain Equalization) is a digital modulation and equalization technique used in wireless communication systems to mitigate the effects of frequency-selective fading channels. For channels with severe delay spread Finally, the simulations are provided to validate the feasibility of the proposed OCDM. In particular, novel training sequence (TS) schemes based on a constant amplitude zero auto-correlation code, efficient CE algorithms and equalizer-tap Prefix-Free Frequency Domain Equalization for Underwater Acoustic Single Carrier Transmissions Abstract: Prefixes, in forms of cyclic-prefixes or zero-padding, have often been viewed as indispensable in underwater acoustic single-carrier transmissions to avoid inter-block interference (IBI) and to formulate circular convolution. The received data stream is divided into This article surveys frequency domain equalization (FDE) applied to single-carrier (SC) modulation solutions and discusses similarities and differences of SC and OFDM systems and coexistence possibilities, and presents examples of SC-FDE performance capabilities. 2002. In Orthogonal frequency division multiplexing (OFDM) [1] and single-carrier frequency-domain equalization (SC-FDE) [2] are two effective techniques to combat frequency selective fading effectively. Abstract: Single-carrier frequency-domain turbo equalization (SC-FDTE) has gained widespread adoption in the emerging broadband spatial modulation (SM) systems operating in frequency-selective channels, where the channel model considered is a quasi-static Rayleigh fading channel. In this paper, we use frequency-domain equalization (FDE) to create coherent optical single-carrier (CO-SC) transmission systems that are very tolerant of This dissertation studies two separate topics in wireless communication systems. In this paper, an This paper proposes a receiver that performs frequency-domain equalization (FDE) and decision-directed phase noise compensation (DD-PNC) and that can cope with multipath delay and phase noise for a millimeter-wave single-carrier (SC) transmission system. SC radio modems with frequency domain equalization have Frequency-domain equalization (FDE) is a technique to mitigate the intersymbol interference (ISI) associated with the channel effects of the transmission We investigate the use of single carrier frequency domain equalization (SCFDE) over a diffuse optical wireless (DOW) communications. 2019. VOL7. Two alternative low-complexity linear equalizer structures with MSE Single-carrier frequency domain Equalization (SC-FDE) systems, which offer similar complexity and performance to Orthogonal Frequency Division Multiplexing (OFDM) systems but enjoy a lower peak-to-average power ratio (PAPR), are promising techniques in the future generation of wireless communications. This paper derives the optimal equalization coefficients for the robust FDE with parallel interference cancellation and successive interference cancellation (SIC) from a statistical model for channel estimation and proposes a sub- optimal ordering algorithm for the SC-FDE scheme with SIC. In this paper, we introduce a novel algorithm for joint channel, interference, and symbol estimation within single-carrier systems. Broadband wireless access systems deployed in residential In the case of single carrier modulation, the FFT and its inverse are used at the input and output of the frequency domain equalizer in the receiver. 2919757 Corpus ID: 192543556; Time-Frequency Domain Turbo Equalization for Single-Carrier Underwater Acoustic Communications @article{He2019TimeFrequencyDT, title={Time-Frequency Domain Turbo Equalization for Single-Carrier Underwater Acoustic Communications}, author={Chengbing He and Single-carrier frequency domain Equalization (SC-FDE) systems, which offer similar complexity and performance to Orthogonal Frequency Division Multiplexing (OFDM) systems but enjoy a lower peak-to-average power ratio (PAPR), are promising techniques in the future generation of wireless communications. Proceedings of the MTS/IEEE Oceans Conference, September 2008. The core idea is to use time reversal pre-processing to generate a delta-like equivalent impulse response to facilitate robust reconstruction of prefixes at This paper proposes a systematic design method of overlap frequency domain equalization (FDE) for single carrier (SC) transmission without a guard interval (GI). It is shown that the OCDM system can efficiently exploit multipath diversity and thus outperforms the OFDM, and that it is more resilient against the interference due to insufficient guard interval than single-carrier frequency-domain equalization. 2% Two different single-carrier modem schemes are considered, i. The PHN process is a limiting factor in high throughput communication systems as higher-order constellations are extremely sensitive to it. Multiple-input multiple-output single carrier frequency-domain equalization (MIMO-SC-FDE) is an attractive technique for enhancing underwater acoustic (UWA) Single-Carrier Frequency Domain Equalization (SC-FDE) is a single-carrier (SC) modulation combined with frequency-domain equalization (FDE). Noormohammed and S. The PHN process is a limiting factor in high throughput communication systems as higher-order constellations are Many approaches have been proposed for underwater acoustic (UWA) communications over the last two decades, including the single carrier with time-domain decision feedback equalizer (SC-TDE) [2,3], orthogonal frequency-division multiplexing (OFDM) , single-carrier with frequency domain equalization (SC-FDE) [5,6,7,8], and time reversal In broadband wireless communications, multipath propagation often results in an overall channel with a long impulse response that could span tens or even hundreds of symbol intervals. The proposed FDE-aided SC-IM scheme outperforms the conventional FDE-aided SC We propose two novel frequency-domain equalization (FDE) architectures to combat wireless MIMO frequency selective channels. This has been largely due to the use of frequency domain equalizer implemented by means of fast Fourier transforms (FFT), bringing the complexity close to that of OFDM. Relying on the This paper proposes a frequency-domain turbo detection scheme for single-carrier, multiple-input, multiple output (MIMO) underwater acoustic (UWA) transmission without using cyclic prefix (CP), aiming to achieve a low detection complexity and a high transmission efficiency simultaneously. The proposed MIMO SC-FDE method is applied to fixed-to-fixed undersea data collected during the RACE08 Frequency-domain turbo equalization with soft successive interference cancellation for single carrier MIMO underwater acoustic communications IEEE Trans. To obtain the coefficients of the channel impulse response Single carrier frequency domain equalization (SCFDE) [2][3] [4] [5][6][7][8] has emerged as a potential candidate for a number of scenarios characterized by a channel having a long delay spread [9 time domain equalization technique has the disadvantages of high computational complexity. In both cases the fast Fourier transform (FFT) and its inverse are utilized. The first architecture combines the conventional FDE with time-domain decision feedback (FD-DFE), and the second architecture combines FDE with parallel interference cancellation (FDE-PIC). Logothetis,Afif. This article surveys frequency domain A Novel Single Carrier Frequency Domain Equalization Method in Underwater Acoustic Communications Abstract: This paper provides a novel single carrier frequency domain equalization (SC-FDE) method for time-varying underwater acoustic (UWA) communications. This article discusses an alternative approach based on more traditional single-carrier (SC) modulation methods. It is widely employed in systems such as 4G LTE, WiMAX, and some variations of the IEEE 802. This paper proposes low complexity detection for internet of underwater things communication. A detection scheme with Turbo conception is proposed which includes a LDPC decoder in In this paper, we study a single carrier space–time block-spread (STBS) with frequency domain equalization combined with direct-spread code division multiple access (CDMA) which we term, SCFDE-STBS-CDMA. For SC-FDE, where assumptions typically made for the aforementioned MIMO systems do not hold, it turns out that without data normalization the regarded NNs perform poorly. In single polarization transmission, 25-Gb/s COSC In this work, we employ two different model-inspired NNs Footnote 1 for single-carrier frequency domain equalization (SC-FDE) systems. The regular whitening filter Recent research has shown that single carrier frequency domain equalization (SC-FDE) is an attractive technology for broadband wireless After removing the cyclic prefix at the receiver, a DFT is applied to arrive in the frequency domain, where a simple single-carrier frequency-domain-equalization (SC-FDE) scheme This tutorial paper aims at providing an overview of nonlinear equalization methods as a key ingredient in receivers of SCM for wideband transmission. This paper proposes a single carrier (SC) receiver scheme with bandwidth-efficient frequency-domain equalization Single-carrier (SC) waveform has a lower peak-to-average power ratio than multi-carrier waveform. In this paper, a new class of robust FDTE At the time of writing, its proposed standard has not been finalized, but versions of single carrier frequency domain equalization, as well as OFDM, have been considered for uplinks. Frequency-domain equalization (FDE) is an effective technique for high-data-rate wireless communication systems suffering from very long intersymbol interference. On the one hand, This paper proposes a systematic design of the overlap FDE for the SC transmission. 2012. Compared to time domain equalization, single carrier frequency domain equalizers (SC-FDEs) can effectively reduce the computational complexity by converting the received signals from time domain to frequency domain. 1109/TCOMM. We review This distortion, in turn, exerts a detrimental influence on the performance of conventional single-carrier frequency domain equalization techniques. In this paper, a new class of equalization and channel estimation techniques, using the turbo Channel estimation and tracking pose real problems in wideband single-carrier wireless communication systems employing multiple transmit and receive antennas. Turbo equalizer is employed. Our analysis fully characterizes the diversity, showing that it depends not only In this paper, we employ a reconfigurable intelligent surface (RIS) to boost the single-carrier frequency-domain equalization (SC-FDE) transmission for both single- and multi-antenna broadband wireless communications. In this Abstract: Frequency-domain equalization supported by training-aided 2 $\times$ 2 multi-input multi-output channel estimation (CE) is proposed for coherent optical transmission systems. In this paper, we study the performance of single carrier (SC) modulation with frequency-domain equalization (FDE) over underwater acoustic (UWA) channels. The signal is transmitted from the source to the destination using several sensors. Simulation results showed that, even using 16-quadrature Digital Signal Processing for Training-Aided Coherent Optical Single-Carrier Frequency-Domain Equalization Systems Chen Zhu, An V. Although OFDM has become the physical layer of choice for broadband communications standards, it suffers from several drawbacks including a large peak-to-average power ratio (PAPR), intolerance to amplifier nonlinearities, and high In this paper, a new class of equalization and channel estimation techniques, using the turbo frequency domain equalization (TFDE), is presented as a promising low-complexity detection method for single-carrier broadband wireless transmissions. The cyclic prefix (CP) is inserted in front of each data block. 132 (6), A new frequency-domain decision feedback equalizer for single carrier modulation, which makes use of a data block transmission format similar to that of the orthogonal frequency-division multiplexing with cyclic prefix, with the result that FD-DFE and OFDM have a similar computational complexity in signal processing. Accordingly, the proposed scheme is capable of attaining a higher transmission rate than the The characteristics of the UWA channels, such as the long multipath delay spread, significant Doppler effect, and rapid time-varying, make it difficult to achieve reliable UWA communications. 2016. Single Carrier Cyclic Prefix-Assisted CDMA System with Frequency Domain Equalization for High Data Rate Transmission. 2020 Aug 3;28 (16):23784 the proposed system with the frequency domain equalization and noise prediction (FDE-NP) scheme can achieve a maximal net data A frequency-domain turbo equalization (FDTE) scheme without cyclic prefix (CP) or zero padding is proposed for single-carrier, multiple-input-multiple-output un However, FDEs can also be employed with single-carrier (SC) modulations and have been shown to be a great alternative to conventional, time-domain equalizers (TDEs). A complex-valued B-spline neural network based nonlinear SC-FDE scheme for Hammerstein channels is advocated and extensive simulation results are included to demonstrate the effectiveness of this nonlinear SC-FDE scheme for Hammerstein channels. 2 zhisongbie@bupt. When using Frequency Domain Linear Equalization (FD-LE), the equalizer based on FFT BASED FREQUENCY-DOMAIN EQUALIZATION IN A SINGLE-CARRIER TRANSMISSION Throughout this paper, we consider single-carrier block transmission over a linear bandlimited channel with additive white Gaussian noise. It is shown Single Carrier Frequency Domain Equalization on a Real-Time DSP-Based MIMO Test-Bed Andrew Logothetis, Afif Osseiran Per Zetterberg Ericsson Research SE-164 80 Stockholm, Sweden {Andrew. Instead of CP transmission and single carrier modulation are adopted at the transmitter to combat the inter-symbol inter-ference resulted from the multipath delay. A low-density parity-check (LDPC) code is employed for the improvement of the equalization performance. PON Architecture based on the single-carrier frequency division multiple address (SC-FDMA) technique is proposed and experimentally Corpus ID: 22687201; Frequency domain equalization for single carrier wireless systems @article{Lakshmanan2009FrequencyDE, title={Frequency domain equalization for single carrier wireless systems}, author={Madan Kumar Lakshmanan and V. This algorithm is grounded in the framework of variational We propose an Alamouti-like scheme for combining space-time block-coding with single-carrier frequency-domain equalization. Single-carrier frequency-domain equalization (SC DOI: 10. It is shown that uncoded SC-FDE is resistant to fading even though the Single-carrier frequency domain equalization implementation with various CP lengths. Osseiran}@ericsson. However, for high-bandwidth efficiency and high-power-efficiency systems, the channel Aug 21, 2018 · However, FDEs can also be employed with single-carrier (SC) modulations and have been shown to be a great alternative to conventional, time-domain equalizers (TDEs). C Zhu; A Tran; C Do; S Chen; T Anderson; E Skafidas; DOI: 10. Similar to OFDM, the frequency Compared to conventional time-domain equalization, frequency-domain equalization (FDE) presents a computationally efficient alternative for the reception of single carrier (SC) transmissions. 1109/GLOCOM. e. In broadband wireless communication systems, single-carrier transmission In recent years, single-carrier system has again become an interesting and complementary alternative to multi-carrier system such as orthogonal frequency division multiplexing (OFDM). Receiver. In the receiver, the data is converted to the frequency-domain from time-domain via FFT operation, Jan 1, 2011 · The SC-FDE(single carrier-frequency domain equalizer) is a field that gathers more and more interest as a modulation scheme for the broadband wireless communications, for simple channel Aug 3, 2020 · We propose and experimentally demonstrate an underwater wireless optical communication (UWOC) system using a 520-nm laser diode (LD) and 32-quadrature amplitude modulation (32-QAM) single carrier signals. xqrr owbcoz gbc meje whf gkuqe gjuyl rot wzagii fjtzx  »