Title :
Least squares-based receive antenna selection for MIMO spatial multiplexing systems with linear receivers
Author :
Lin, Zhiwei ; Premkumar, A.B. ; Madhukumar, A.S.
Author_Institution :
Inst. for Infocomm Res., Singapore, Singapore
fDate :
4/1/2006 12:00:00 AM
Abstract :
In this letter, a novel receive antenna selection technique is proposed for multiple input multiple output (MIMO) spatial multiplexing systems with linear receivers in the presence of unknown interference. This antenna selection technique is directly implemented based on training sample sequence under the least squares (LS) criterion. It avoids the channel estimation and retain the diversity benefit by antenna selection in the presence of unknown multiple access interference (MAI). In addition, practical implementation with manageable complexity is made possible by extending the fast backward greedy algorithm (BGA) into the proposed antenna selection algorithm.
Keywords :
MIMO systems; diversity reception; linear antenna arrays; radiofrequency interference; receiving antennas; sequences; space division multiplexing; MAI; MIMO spatial multiplexing system; backward greedy algorithm; diversity order; fast BGA; least squares criterion; linear receiver; multiple access interference; multiple input multiple output system; receiving antenna selection technique; training sample sequence; Channel estimation; Computational complexity; Greedy algorithms; Least squares methods; MIMO; Multiple access interference; Radio frequency; Receiving antennas; Transmitters; Transmitting antennas;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2006.1613738
