Performance Evaluation of Transmission Technique Utilizing Linear Combination Diversity in MIMO Spatial Multiplexing Systems

Yutaka MURAKAMI  Takashi MATSUOKA  Kazuaki TAKAHASHI  Masayuki ORIHASHI  

Publication
IEICE TRANSACTIONS on Communications   Vol.E91-B   No.5   pp.1511-1520
Publication Date: 2008/05/01
Online ISSN: 1745-1345
DOI: 10.1093/ietcom/e91-b.5.1511
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Wireless Communication Technologies
Keyword: 
MIMO system,  LC-diversity,  NLOS/LOS environments,  BER performance,  diversity gain,  

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Summary: 
In this paper, we evaluate BER (bit error rate) performance and diversity gain when employing a transmission technique utilizing LC (Linear Combination) diversity using 2 time slots with QPSK channels in 2 2 MIMO (Multiple-Input Multiple-Output) spatial multiplexing systems by comparing it with the upper and lower bound on BER. This evaluation shows that this transmission technique realizes high diversity gain and high transmission rate in LOS (line-of-sight) and NLOS (non line-of-sight) environments.