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

Citation
Sl. Ariyavisitakul et al., Optimum space-time processors with dispersive interference: Unified analysis and required filter span, IEEE COMMUN, 47(7), 1999, pp. 1073-1083
Citations number
23
Categorie Soggetti
Information Tecnology & Communication Systems
Journal title
IEEE TRANSACTIONS ON COMMUNICATIONS
ISSN journal
00906778 → ACNP
Volume
47
Issue
7
Year of publication
1999
Pages
1073 - 1083
Database
ISI
SICI code
0090-6778(199907)47:7<1073:OSPWDI>2.0.ZU;2-Z
Abstract
In this paper, we consider optimum space-time equalizers with unknown dispe rsive interference, consisting of a linear equalizer that both spatially an d temporally whitens the interference and noise, followed by a decision-fee dback 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. Expres sions are given for the required filter span as a function of the dispersio n length, number of cochannel interferers, number of antennas, and SNR, whi ch are useful in the design of practical near-optimum space-time equalizers .