A fixed-lag particle smoothing algorithm for the blind turbo equalization of time-varying channels

Alberto Gaspar Guimarães; Boujemaa Ait El Fquih; Francois Desbouvries

doi:10.1109/ICASSP.2008.4518260

A fixed-lag particle smoothing algorithm for the blind turbo equalization of time-varying channels

Alberto Gaspar Guimarães, Boujemaa Ait El Fquih, Francois Desbouvries

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

2 Scopus citations

Abstract

We introduce a novel sequential importance sampling (SIS) algorithm for the blind equalization of doubly selective channels. Our algorithm propagates a Monte Carlo (MC) approximation of the posterior fixed-lag smoothing distribution of the symbols. As we shall see, it is possible to sample particles from the optimal importance distribution and to update the smoothing importance weights accordingly. We next apply the developed method as a SISO (Soft Input Soft Output) equalizer in a turbo receiver framework. The performance evaluation of our algorithm is carried out under different fading scenarios, and the results are compared with a soft iterative channel estimation scheme available in the literature.

Original language	English (US)
Title of host publication	2008 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP
Pages	2917-2920
Number of pages	4
DOIs	https://doi.org/10.1109/ICASSP.2008.4518260
State	Published - 2008
Externally published	Yes
Event	2008 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP - Las Vegas, NV, United States Duration: Mar 31 2008 → Apr 4 2008

Publication series

Name	ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
ISSN (Print)	1520-6149

Other

Other	2008 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP
Country/Territory	United States
City	Las Vegas, NV
Period	03/31/08 → 04/4/08

Keywords

Blind equalization
Sequential importance sampling methods
Turbo equalization

ASJC Scopus subject areas

Software
Signal Processing
Electrical and Electronic Engineering

Access to Document

10.1109/ICASSP.2008.4518260

Cite this

Guimarães, A. G., El Fquih, B. A., & Desbouvries, F. (2008). A fixed-lag particle smoothing algorithm for the blind turbo equalization of time-varying channels. In 2008 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP (pp. 2917-2920). Article 4518260 (ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings). https://doi.org/10.1109/ICASSP.2008.4518260

Guimarães, Alberto Gaspar ; El Fquih, Boujemaa Ait ; Desbouvries, Francois. / A fixed-lag particle smoothing algorithm for the blind turbo equalization of time-varying channels. 2008 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP. 2008. pp. 2917-2920 (ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings).

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title = "A fixed-lag particle smoothing algorithm for the blind turbo equalization of time-varying channels",

abstract = "We introduce a novel sequential importance sampling (SIS) algorithm for the blind equalization of doubly selective channels. Our algorithm propagates a Monte Carlo (MC) approximation of the posterior fixed-lag smoothing distribution of the symbols. As we shall see, it is possible to sample particles from the optimal importance distribution and to update the smoothing importance weights accordingly. We next apply the developed method as a SISO (Soft Input Soft Output) equalizer in a turbo receiver framework. The performance evaluation of our algorithm is carried out under different fading scenarios, and the results are compared with a soft iterative channel estimation scheme available in the literature.",

keywords = "Blind equalization, Sequential importance sampling methods, Turbo equalization",

author = "Guimar{\~a}es, {Alberto Gaspar} and {El Fquih}, {Boujemaa Ait} and Francois Desbouvries",

year = "2008",

doi = "10.1109/ICASSP.2008.4518260",

language = "English (US)",

isbn = "1424414849",

series = "ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings",

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booktitle = "2008 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP",

note = "2008 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP ; Conference date: 31-03-2008 Through 04-04-2008",

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Guimarães, AG, El Fquih, BA & Desbouvries, F 2008, A fixed-lag particle smoothing algorithm for the blind turbo equalization of time-varying channels. in 2008 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP., 4518260, ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings, pp. 2917-2920, 2008 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP, Las Vegas, NV, United States, 03/31/08. https://doi.org/10.1109/ICASSP.2008.4518260

A fixed-lag particle smoothing algorithm for the blind turbo equalization of time-varying channels. / Guimarães, Alberto Gaspar; El Fquih, Boujemaa Ait; Desbouvries, Francois.
2008 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP. 2008. p. 2917-2920 4518260 (ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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AB - We introduce a novel sequential importance sampling (SIS) algorithm for the blind equalization of doubly selective channels. Our algorithm propagates a Monte Carlo (MC) approximation of the posterior fixed-lag smoothing distribution of the symbols. As we shall see, it is possible to sample particles from the optimal importance distribution and to update the smoothing importance weights accordingly. We next apply the developed method as a SISO (Soft Input Soft Output) equalizer in a turbo receiver framework. The performance evaluation of our algorithm is carried out under different fading scenarios, and the results are compared with a soft iterative channel estimation scheme available in the literature.

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KW - Turbo equalization

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Guimarães AG, El Fquih BA, Desbouvries F. A fixed-lag particle smoothing algorithm for the blind turbo equalization of time-varying channels. In 2008 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP. 2008. p. 2917-2920. 4518260. (ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings). doi: 10.1109/ICASSP.2008.4518260

A fixed-lag particle smoothing algorithm for the blind turbo equalization of time-varying channels

Abstract

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Keywords

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