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Adaptive Blind MMSE Equalization for SIMO Channel  

Ahn, Kyung-Seung (Department of Electronic Engineering, Chonbuk National University)
Baik, Heung-Ki (Division of Electronics & Information Engineering, Electronics & Information Advanced Technologh Research Center, Chonbuk National University)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.27, no.8A, 2002 , pp. 753-762 More about this Journal
Abstract
Blind equalization of transmission channel is important in communication areas and signal processing applications because it does not need training sequences, nor dose it require a priori channel information. In this paper, an adaptive blind MMSE channel equalization technique based on second-order statistics in investigated. We present an adaptive blind MMSE channel equalization using multichannel linear prediction error method for estimating cross-correlation vector. They can be implemented as RLS or LMS algorithms to recursively update the cross-correlation vector. Once cross-correlation vector is available, it can be used for MMSE channel equalization. Unlike many known subspace methods, our proposed algorithms do not require channel order estimation. Therefore, our algorithms are robust to channel order mismatch. Performance of our algorithms and comparisons with existing algorithms are shown for real measured digital microwave channel.
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