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Decoding Performance of Quasi-Orthogonal Space Time Block Code Using Optimal Transmit Power Allocation  

Choe Kwang don (안양과학대학 전자통신정보학부)
Kim Bong joon (LG 전자 DAV 사업부)
Cho Young ha (삼성전기 중앙연구소 ASIC센터)
Park Sang kyu (한양대학교 전자통신컴퓨터공학부)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.30, no.4A, 2005 , pp. 282-287 More about this Journal
Abstract
The space time block code(STBC) can not provide simultaneously both full diversity and full transmission rate in a transmit diversity system having more than two transmit antennas.. There are a quasi orthogonal STBC for four transmit antennas that provides full transmission rate and minimized interference. Recently, a simple correlation canceling algorithm is introduced to achieve full diversity from STBC considering four transmit antennas. In this paper, we propose a new decoding procedure using the power allocation at the transmitter and subtraction interference process at the receiver to achieve a better performance without noise enhancement.
Keywords
quasi-orthogonal; space time block code; transmit diversity; transmit power allocation;
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