Title :
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
fDate :
6/23/1905 12:00:00 AM
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;
Conference_Titel :
Vehicular Technology Conference, 2001. VTC 2001 Fall. IEEE VTS 54th
Conference_Location :
Atlantic City, NJ
Print_ISBN :
0-7803-7005-8
DOI :
10.1109/VTC.2001.956535
