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 (DFE) or maximum-likelihood sequence estimator (MLSE). 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.
|Title of host publication||IEEE International Conference on Communications|
|Publisher||Institute of Electrical and Electronics Engineers Inc.|
|Number of pages||6|
|Publication status||Published - 1999|
|Event||1999 IEEE International Conference on Communications, ICC 1999 - Vancouver, Canada|
Duration: 1999 Jun 6 → 1999 Jun 10
|Name||IEEE International Conference on Communications|
|Other||1999 IEEE International Conference on Communications, ICC 1999|
|Period||99/6/6 → 99/6/10|
Bibliographical notePublisher Copyright:
© 1999 IEEE.
ASJC Scopus subject areas
- Computer Networks and Communications
- Electrical and Electronic Engineering