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An Antenna Selection and Switching System Robust to Spatially Correlated Channel  

심세준 (연세대학교 전기전자공학과)
박승일 (삼성전)
이학주 (연세대학교 전기전자공학)
이충용 (연세대학교 전기전자공학과)
Publication Information
Journal of the Institute of Electronics Engineers of Korea TC / v.41, no.7, 2004 , pp. 55-61 More about this Journal
Abstract
This paper proposes an antenna selection and switching system between spatial multiplexing and diversity techniques. The proposed system overcomes spatial correlation by using antenna selection method and improve bit error performance with switching encoding nudes between a spatial multipexing encoder and a diversity encoder. Therefore, in a 4 transmit and 2 receive antenna system first, the proposed system selects 2 transmit antennas, and next, switches encoding modes between Space-Time Transmit Diversity and BLAST according to instantaneous channel information. Computer simulations showed that the proposed system improves about 2 or 3 ㏈ SNR in low correlated channel and about 3 ㏈ SNR in highly correlated channel rather than a 2 by 2 antenna switching system.
Keywords
다중 안테나;공간 다중화;다이버시티;안테나 선택-스위칭;채널 상관도;
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