Decision feedback equalization using an Euclidean direction based adaptive algorithm

Author

Mathurasai, Tanawat ; Bose, Tarnal ; Etter, Delores M.

Author_Institution

Dept. of Electr. & Comput. Eng., Colorado Univ., Boulder, CO, USA

Volume

1

fYear

1999

fDate

24-27 Oct. 1999

Firstpage

519

Abstract

Adaptive filtering algorithms are presented that are based on the Euclidean direction search (EDS) method of optimization. The EDS based algorithms have a fast convergence rate and O(N) computational complexity. These algorithms are investigated for decision feedback equalization in a mobile communication channel with additive noise and multipath. The EDS algorithms are shown to perform very well in attenuating noise and intersymbol interference. Performance in terms of bit error rate (BER) and convergence rate are comparable to those of the RLS algorithm, but at a lower computational cost.

Keywords

adaptive equalisers; adaptive filters; computational complexity; convergence of numerical methods; decision feedback equalisers; error statistics; interference suppression; intersymbol interference; land mobile radio; multipath channels; optimisation; EDS algorithms; EDS based algorithms; Euclidean direction based adaptive algorithm; Euclidean direction search; adaptive filtering algorithms; additive noise; bit error rate; computational complexity; computational cost; convergence rate; decision feedback equalization; fast convergence rate; intersymbol interference; mobile communication channel; multipath; noise attenuation; optimization; Adaptive filters; Additive noise; Bit error rate; Computational complexity; Convergence; Decision feedback equalizers; Filtering algorithms; Intersymbol interference; Mobile communication; Optimization methods;

fLanguage

English

Publisher

ieee

Conference_Titel

Signals, Systems, and Computers, 1999. Conference Record of the Thirty-Third Asilomar Conference on

Conference_Location

Pacific Grove, CA, USA

ISSN

1058-6393

Print_ISBN

0-7803-5700-0

Type

conf

DOI

10.1109/ACSSC.1999.832384

Filename

832384