Fully adaptive MLSE equalizer performance with MPSK signals

Author

Collings, Iain B. ; Won, Dae Han

Author_Institution

Sch. of Electr. & Inf. Eng., Sydney Univ., NSW, Australia

Volume

4

fYear

2003

fDate

11-15 May 2003

Firstpage

2370

Abstract

This paper analyzes a fully adaptive MLSE equalizer in fast fading channel conditions. The receiver requires no channel state information, and even adapts to learn the channel fading statistics. The equalizer is analyzed using pairwise error probabilities to derive lower bounds on performance for MPSK signals. Simulation studies confirm that the analytic bounds are close to the true performance. A new decision delay adaption rule is proposed, based on the bit error rate analysis. With this new rule, the fully adaptive MLSE equalizer is shown to outperform existing fixed-delay equalizers when channel statistics are unknown.

Keywords

adaptive equalisers; delays; error statistics; fading channels; maximum likelihood sequence estimation; phase shift keying; receivers; MPSK; adaptive MLSE equalizer; bit error rate analysis; channel statistics; decision delay adaption rule; fading channel; fixed-delay equalizers; maximum-likelihood sequence estimator; multiple phase shift keying; pairwise error probabilities; receiver; Analytical models; Channel state information; Equalizers; Error analysis; Fading; Maximum likelihood estimation; Pairwise error probability; Performance analysis; Signal analysis; Statistics;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, 2003. ICC '03. IEEE International Conference on

Print_ISBN

0-7803-7802-4

Type

conf

DOI

10.1109/ICC.2003.1204310

Filename

1204310