A block adaptive frequency domain MIMO DFE for wideband channels

Vassilis Kekatos; Kostas Berberidis; Athanasios A. Rontogiannis

doi:10.1109/ICASSP.2007.366506

A block adaptive frequency domain MIMO DFE for wideband channels

Vassilis Kekatos, Kostas Berberidis, Athanasios A. Rontogiannis

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

5 Scopus citations

Abstract

The equalization of MIMO frequency selective channels is a challenging task due to the increased filter lengths required and the presence of interstream interference. In wideband systems where high delay spread channels arise and long transmission bursts are employed, adaptive equalization is necessary. In this work, we develop an adaptive MIMO DFE for wideband time varying systems. To reduce computational complexity and accelerate convergence rate, the equalizer is fully implemented in the frequency domain, while an inherent causality problem is efficiently solved through an iterative scheme. As verified by simulations, the proposed method offers a good trade off in terms of complexity and convergence, compared to other related adaptive algorithms.

Original language	English (US)
Title of host publication	2007 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP '07
Pages	III197-III200
DOIs	https://doi.org/10.1109/ICASSP.2007.366506
State	Published - 2007
Externally published	Yes
Event	2007 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP '07 - Honolulu, HI, United States Duration: Apr 15 2007 → Apr 20 2007

Publication series

Name	ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
Volume	3
ISSN (Print)	1520-6149

Other

Other	2007 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP '07
Country/Territory	United States
City	Honolulu, HI
Period	4/15/07 → 4/20/07

Keywords

Adaptive equalizers
MIMO systems

Publisher link

10.1109/ICASSP.2007.366506

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Kekatos, V., Berberidis, K., & Rontogiannis, A. A. (2007). A block adaptive frequency domain MIMO DFE for wideband channels. In 2007 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP '07 (pp. III197-III200). Article 4217680 (ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings; Vol. 3). https://doi.org/10.1109/ICASSP.2007.366506

A block adaptive frequency domain MIMO DFE for wideband channels. / Kekatos, Vassilis; Berberidis, Kostas; Rontogiannis, Athanasios A.
2007 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP '07. 2007. p. III197-III200 4217680 (ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings; Vol. 3).

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

Kekatos, V, Berberidis, K & Rontogiannis, AA 2007, A block adaptive frequency domain MIMO DFE for wideband channels. in 2007 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP '07., 4217680, ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings, vol. 3, pp. III197-III200, 2007 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP '07, Honolulu, HI, United States, 4/15/07. https://doi.org/10.1109/ICASSP.2007.366506

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abstract = "The equalization of MIMO frequency selective channels is a challenging task due to the increased filter lengths required and the presence of interstream interference. In wideband systems where high delay spread channels arise and long transmission bursts are employed, adaptive equalization is necessary. In this work, we develop an adaptive MIMO DFE for wideband time varying systems. To reduce computational complexity and accelerate convergence rate, the equalizer is fully implemented in the frequency domain, while an inherent causality problem is efficiently solved through an iterative scheme. As verified by simulations, the proposed method offers a good trade off in terms of complexity and convergence, compared to other related adaptive algorithms.",

keywords = "Adaptive equalizers, MIMO systems",

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AB - The equalization of MIMO frequency selective channels is a challenging task due to the increased filter lengths required and the presence of interstream interference. In wideband systems where high delay spread channels arise and long transmission bursts are employed, adaptive equalization is necessary. In this work, we develop an adaptive MIMO DFE for wideband time varying systems. To reduce computational complexity and accelerate convergence rate, the equalizer is fully implemented in the frequency domain, while an inherent causality problem is efficiently solved through an iterative scheme. As verified by simulations, the proposed method offers a good trade off in terms of complexity and convergence, compared to other related adaptive algorithms.

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A block adaptive frequency domain MIMO DFE for wideband channels

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