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

Regular Section

The Institute of Electronics, Information and Communication Engineers">Yutaka MURAKAMI, The Institute of Electronics, Information and Communication Engineers">Takashi MATSUOKA, The Institute of Electronics, Information and Communication Engineers">Kazuaki TAKAHASHI, The Institute of Electronics, Information and Communication Engineers">Masayuki ORIHASHI

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Keywords: MIMO system, LC-diversity, NLOS/LOS environments, BER performance, diversity gain

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2008 Volume E91.B Issue 5 Pages 1511-1520

DOI https://doi.org/10.1093/ietcom/e91-b.5.1511

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Abstract

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.

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