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MMSE Criterion Fast Decision Feedback Equalization Algorithm for Spatial Multiplexing Systems

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4 Author(s)
Wenjie Jiang ; NTT Access Network Service Syst. Labs., NTT Corp., Yokosuka ; Yusuke Asai ; Takeshi Onizawa ; Satoru Aikawa

Recent studies indicate that spatial multiplexing (SM) scheme has enormous potential for increasing the capacity of MIMO channels in rich scattering environments. In this paper, we present a new MMSE decision feedback equalization algorithm for signal detection in SM systems. The new algorithm separates the order search and the filter generation to avoid recursive ordering operations. Compared to the earlier MMSE-DFE detectors with optimal and suboptimal ordering rules, the new algorithm is less complex and achieves a bit error rate performance that closely approximates that of the standard BLAST algorithm.

Published in:

IEEE Vehicular Technology Conference

Date of Conference:

25-28 Sept. 2006