A matched filter approximation for SC/MMSE iterative equalizers

Author

Omori, Hiroo ; Asai, Takahiro ; Matsumoto, Tad

Author_Institution

Wireless Labs., NTT DoCoMo Inc., Kanagawa, Japan

Volume

3

fYear

2001

fDate

6/23/1905 12:00:00 AM

Firstpage

1917

Abstract

This paper proposes a new iterative ISI equalization algorithm that offers low computational complexity: order L² with channel memory length L. The proposed algorithm is an extension of D. Reynolds and Xiaodong Wang´s SC/MMSE (soft canceller followed by MMSE filter) equalizer (see Signal Processing, vol.81, no.5, p.989-95, 2001): approximations are used properly to reduce the computational complexity. It is shown that the approximations used in the proposed algorithm do not cause any serious performance degradation compared to the conventional trellis-based iterative equalization algorithms

Keywords

adaptive filters; computational complexity; equalisers; intersymbol interference; iterative methods; least mean squares methods; matched filters; mobile radio; ISI; MMSE iterative equalizers; adaptive filter; computational complexity; inter-symbol interference; matched filter approximation; mobile multimedia communications; soft canceller; trellis-based iterative equalization; Adaptive filters; Computational complexity; Degradation; Equalizers; Interference; Iterative algorithms; Iterative decoding; Matched filters; Mobile communication; Nonlinear filters;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2001. VTC 2001 Fall. IEEE VTS 54th

Conference_Location

Atlantic City, NJ

ISSN

1090-3038

Print_ISBN

0-7803-7005-8

Type

conf

DOI

10.1109/VTC.2001.956535

Filename

956535