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SC-FDE

About: SC-FDE is a research topic. Over the lifetime, 438 publications have been published within this topic receiving 7547 citations.


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Patent
25 Oct 2010
TL;DR: In this article, a data frame generation method based on GMSK modulation in single carrier with frequency domain equalization system is provided to prevent the non-continuity of phase by combining a first flush symbol and a second flush symbol.
Abstract: PURPOSE: A data frame generation method based on GMSK modulation in single carrier with frequency domain equalization system is provided to prevent the non-continuity of phase by combining a first flush symbol and a second flush symbol and zero symbol with a first data symbol line and a second data symbol line. CONSTITUTION: Firstly, the input data is slit into a first data and a second data(210). The first data and the second data are modulated in BPSK(Binary Phase Shift Keying) method, respectively(220). A first flush symbol and a second flush symbol are determined according to the first data symbol line and the second data symbol line(230).
Book ChapterDOI
01 Jan 2006
TL;DR: In this paper, the concept of a Single Carrier System with Frequency Domain Equalization (SC/FDE) was proposed for the estimation and compensation of the IQ imbalance in AWGN and multi-path propagation.
Abstract: Robust communication concepts and/or synchronization algorithms represent one of the most important aspects for high rate wireless communication systems. In this work efficient concepts and algorithms for the estimation and compensation of IQ imbalance are developed. The investigations are based on the concept of a Single Carrier System with Frequency Domain Equalization (SC/ FDE), as the underlying data structure is optimally suited for synchronization purposes. Novel algorithms are developed in the time and frequency domain, which allow to estimate and compensate the IQ imbalance almost completely - for the case of AWGN as well as multi-path propagation.
Proceedings ArticleDOI
11 May 2015
TL;DR: This paper presents a simple, yet accurate analytical model for obtaining the corresponding BER (Bit Error Rate) performance of SC-FDE schemes employing iterative receivers based on the IB-DFE (Iterative Block Decision Feedback Equalization).
Abstract: SC (Single-Carrier) modulations are known to be suitable for high data rate transmission over severely time-dispersive channels such as the ones inherent to wireless systems. When combined with an appropriate CP (Cyclic Prefix), they present an efficient alternative to MC (Multi-Carrier) modulations such as OFDM (Orthogonal Frequency Division Multiplexing), with similar overall complexity. In this paper we study the theoretical performance of SC-FDE schemes (SC with Frequency- Domain Equalization) employing iterative receivers based on the IB-DFE (Iterative Block Decision Feedback Equalization). We present a simple, yet accurate analytical model for obtaining the corresponding BER (Bit Error Rate) performance.
Proceedings ArticleDOI
19 Jul 2018
TL;DR: Simulation results show that the performance of the proposed simplified design of the Iterative Block Decision Feedback Equalization is similar to the traditional iterative IBDFE under frequency selective fading channels, but it imposes a lower complexity than the conventional IBDFe.
Abstract: The Single Carrier Frequency Domain Equalization (SC-FDE) system can effectively work in frequency selective fading channels. The Iterative Block Decision Feedback Equalization (IBDFE) is efficient nonlinear equalization in SC-FDE systems. However, the computational complexity is high and the complexity is proportional to the number of iterations. In this paper, a low-complexity IB-DFE is proposed. The transmitted symbols go through a linear equalizer based on the minimum-mean-square-error (MMSE) criterion and the estimated symbols is as the output of the conventional feedback equalizer. The feedforward equalizer structure remains the same. Compared with the conventional IBDFE, the iteration is cancelled and the implementation complexity is reduced. Simulation results show that the performance of the proposed simplified design is similar to the traditional iterative IBDFE under frequency selective fading channels, but it imposes a lower complexity than the conventional IBDFE.
Proceedings ArticleDOI
14 Oct 2010
TL;DR: The bit error rate (BER) performance of orthogonal frequency division multiplexing (OFDM) and of single-carrier transmission with frequency-domain equalization (SC/FDE) with the new channel estimator in MIMO channels is compared and computer simulations show that the BER performance of OFDM without sub-carriers adaptive modulation and encoding is similar to SC/F DE system.
Abstract: --The LS channel estimation was modified by implementing space and time code via introducing cyclic conjugate to both the information sequence and the pilot sequence in the time-domain. The bit error rate (BER) performance of orthogonal frequency division multiplexing (OFDM) and of single-carrier transmission with frequency-domain equalization (SC/FDE) with the new channel estimator in MIMO channels is compared. Computer simulations show that the BER performance of OFDM without sub-carrier adaptive modulation and encoding is similar to SC/FDE system while the MSE of the channel estimator of OFDM system is lower when the channel Doppler frequency shift is lower in MIMO channels. The performance of OFDM becomes better than SC/FDE when Doppler frequency shift is larger.
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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
20235
20224
20214
202015
201921
201820