Optimum space-time processors with dispersive interference: Unified analysis and required filter span

Sirikiat Lek Ariyavisitakul; Jack H. Winters; Inkyu Lee

doi:10.1109/9780470544075.ch6

Optimum space-time processors with dispersive interference: Unified analysis and required filter span

Sirikiat Lek Ariyavisitakul, Jack H. Winters, Inkyu Lee

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

Abstract

In this paper, we consider optimum space-time equalizers with unknown dispersive interference, consisting of a linear equalizer that both spatially and temporally whitens the interference and noise, followed by a decision-feedback equalizer or maximum-likelihood sequence estimator. We first present a unified analysis of the optimum space-time equalizer, and then show that, for typical fading channels with a given signal-to-noise ratio (SNR), near-optimum performance can be achieved with a finite-length equalizer. Expressions are given for the required filter span as a function of the dispersion length, number of cochannel interferers, number of antennas, and SNR, which are useful in the design of practical near-optimum space-time equalizers.

Original language	English
Title of host publication	Adaptive Antennas for Wireless Communications
Publisher	John Wiley and Sons Inc.
Pages	749-759
Number of pages	11
ISBN (Electronic)	9780470544075
ISBN (Print)	0780360168, 9780780360167
DOIs	https://doi.org/10.1109/9780470544075.ch6
Publication status	Published - 2009 Jan 1
Externally published	Yes

ASJC Scopus subject areas

General Engineering
General Physics and Astronomy

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10.1109/9780470544075.ch6

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abstract = "In this paper, we consider optimum space-time equalizers with unknown dispersive interference, consisting of a linear equalizer that both spatially and temporally whitens the interference and noise, followed by a decision-feedback equalizer or maximum-likelihood sequence estimator. We first present a unified analysis of the optimum space-time equalizer, and then show that, for typical fading channels with a given signal-to-noise ratio (SNR), near-optimum performance can be achieved with a finite-length equalizer. Expressions are given for the required filter span as a function of the dispersion length, number of cochannel interferers, number of antennas, and SNR, which are useful in the design of practical near-optimum space-time equalizers.",

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AU - Ariyavisitakul, Sirikiat Lek

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AU - Lee, Inkyu

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AB - In this paper, we consider optimum space-time equalizers with unknown dispersive interference, consisting of a linear equalizer that both spatially and temporally whitens the interference and noise, followed by a decision-feedback equalizer or maximum-likelihood sequence estimator. We first present a unified analysis of the optimum space-time equalizer, and then show that, for typical fading channels with a given signal-to-noise ratio (SNR), near-optimum performance can be achieved with a finite-length equalizer. Expressions are given for the required filter span as a function of the dispersion length, number of cochannel interferers, number of antennas, and SNR, which are useful in the design of practical near-optimum space-time equalizers.

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Optimum space-time processors with dispersive interference: Unified analysis and required filter span

Abstract

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