Performance of adaptive MLSE equalization on multipath fading channels with imperfect channel estimates

Author

Chiu, Mao-Ching ; Chao, Chi-chao

Author_Institution

Dept. of Electr. Eng., Nat. Tsing Hua Univ., Hsinchu, Taiwan

fYear

1994

fDate

27 Jun-1 Jul 1994

Firstpage

357

Abstract

In the literature, the performance of maximum-likelihood sequence estimation (MLSE) equalization on multipath fading channels is analysed under the assumption of perfect channel estimates. In reality, this condition is difficult to attain, especially for fast fading channels. It is therefore of great significance to study the performance degradation due to imperfect channel estimates. In this paper, we consider a practical MLSE equalizer in conjunction with a least mean square (LMS) channel estimator and a simple channel predictor. A new upper-bound on block error rate is derived for multipath Rayleigh fading channels

Keywords

Rayleigh channels; adaptive equalisers; adaptive estimation; error statistics; estimation theory; fading; land mobile radio; least mean squares methods; maximum likelihood estimation; multipath channels; Rayleigh fading channels; adaptive MLSE equalization; block error rate; channel predictor; fast fading channels; imperfect channel estimates; land mobile channels; least mean square channel estimator; maximum-likelihood sequence estimation; multipath fading channels; performance; upper-bound; AWGN; Adaptive equalizers; Delay estimation; Detectors; Error analysis; Fading; Least squares approximation; Maximum likelihood estimation; State estimation; Viterbi algorithm;

fLanguage

English

Publisher

ieee

Conference_Titel

Information Theory, 1994. Proceedings., 1994 IEEE International Symposium on

Conference_Location

Trondheim

Print_ISBN

0-7803-2015-8

Type

conf

DOI

10.1109/ISIT.1994.394661

Filename

394661