Proceedings Article10.1109/ICC.2002.997106
Reduced complexity iterative receiver for coded asynchronous DS-CDMA systems over frequency selective channels
Noura Sellami,Inbar Fijalkow,Mohamed Siala +2 more
- 07 Aug 2002
- Vol. 3, pp 1531-1535
3
TL;DR: This work derives a low complexity turbo-detector for coded asynchronous DS-CDMA over frequency selective channels using a multidimensional whitened matched filter (WMF) which leads to a white-noise "minimum phase" channel model.
read more
Abstract: We derive a low complexity turbo-detector for coded asynchronous DS-CDMA over frequency selective channels. Our detector is a suboptimal variant of the MAP algorithm based on state-reduction and per-survivor processing. In order to reduce the loss due to state-reduction, we propose to use, as a prefilter for the turbo-detector, a multidimensional whitened matched filter (WMF) which leads to a white-noise "minimum phase" channel model. Simulation results show that the use of the WMF yields significant improvement. Thanks to the iterative turbo processing (detection and decoding are iterated several times), the performance loss due to the use of the suboptimum List-type equalizer is in part recovered.
read more
Chat with Paper
AI Agents for this Paper
Find similar papers on Google Scholar, PubMed and Arxiv
Write a critical review of this paper
Analyze citations of this paper to find unaddressed research gaps
Citations
Iterative channel estimation for coded DS-CDMA systems over frequency selective channels
Noura Sellami,Samson Lasaulce,Inbar Fijalkow +2 more
- 15 Jun 2003
TL;DR: A turbo-detector for coded asynchronous DS-CDMA systems over frequency selective channels is presented and it is proposed to iteratively improve the initial channel estimate, obtained using training sequences, by exploiting the soft decisions provided by the decoders.
10
A comparison analysis of prefiltering methods in space-time trellis-based reduced-state turbo-detection
TL;DR: This paper investigates two different prefiltering strategies, i.e., multiple input multiple output (MIMO) channel shortening and MIMO whitened matched filtering, to decode iteratively a space time bit interleaved coded modulation transmitted over MIMo block fading intersymbol interference channels using a trellis-based post-detector.
2
A decoder for low-complexity equalization of coded frequency selective MIMO channels
Noura Sellami,Inbar Fijalkow +1 more
- 10 Dec 2002
TL;DR: A decoder for low-complexity equalization of coded frequency selective multiple-input multiple-output channels that achieves a good trade-off between performance and complexity even when the channel is not minimum phase is proposed.
References
•Journal Article
Optimal decoding of linear codes for minimizing symbol error rate
TL;DR: The general problem of estimating the a posteriori probabilities of the states and transitions of Markov source observed through a discrete memoryless channel is considered.
6.8K
Near Shannon limit error-correcting coding and decoding: Turbo-codes. 1
Claude Berrou,A. Glavieux,Punya Thitimajshima +2 more
- 23 May 1993
TL;DR: In this article, a new class of convolutional codes called turbo-codes, whose performances in terms of bit error rate (BER) are close to the Shannon limit, is discussed.
Optimal decoding of linear codes for minimizing symbol error rate (Corresp.)
TL;DR: The general problem of estimating the a posteriori probabilities of the states and transitions of a Markov source observed through a discrete memoryless channel is considered and an optimal decoding algorithm is derived.
5.1K
•Book
Signal Analysis
Athanasios Papoulis
- 01 Jan 1977
TL;DR: This application will attempt to localize temperature fluctuations and how they have changed since 1970 by applying a wavelet analysis to Pasco weather data.
1.8K
Delayed decision-feedback sequence estimation
Alexandra Duel-Hallen,C. Heegard +1 more
TL;DR: The authors delayed-decision-feedback sequence estimation (DDFSE) for uncoded PAM signals is considered and estimates on the performance of the algorithm are given, and simulation results are provided for several examples.
852
Related Papers (5)
Andrew C. Singer,Jill K. Nelson,Ralf Koetter +2 more
- 01 Jan 1999
Werner G. Teich,A. Bury,J. Egle,M. Nold,J. Lindner +4 more
- 02 Sep 1998
A. Hafeez,W.E. Stark +1 more
- 04 May 1997