Title :
MMSE Criterion Fast Decision Feedback Equalization Algorithm for Spatial Multiplexing Systems
Author :
Jiang, Wenjie ; Asai, Yusuke ; Onizawa, Takeshi ; Aikawa, Satoru
Author_Institution :
NTT Access Network Service Syst. Labs., NTT Corp., Yokosuka
Abstract :
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.
Keywords :
MIMO communication; channel capacity; decision feedback equalisers; error statistics; filtering theory; least mean squares methods; multiplexing; signal detection; BLAST algorithm; MIMO channel capacity; MMSE criterion fast decision feedback equalization algorithm; MMSE-DFE detector; bit error rate; filter generation; minimum mean square method; recursive ordering operation; rich scattering environment; signal detection; spatial multiplexing system; Decision feedback equalizers; Detectors; Electronic mail; Filters; MIMO; Performance gain; Samarium; Scattering; Signal detection; Silicon carbide;
Conference_Titel :
Vehicular Technology Conference, 2006. VTC-2006 Fall. 2006 IEEE 64th
Conference_Location :
Montreal, Que.
Print_ISBN :
1-4244-0062-7
Electronic_ISBN :
1-4244-0063-5
DOI :
10.1109/VTCF.2006.113
