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A Comparative Analysis of Orthogonal SIBC Algorithms in Spatially Correlated Rayleigh Fading Environments  

Jang, Eun-Kyoung (삼성전자 통신연구소)
Park, Hyung-Rae (한국항공대학교 항공전자 및 정보통신공학부)
Kim, Chang-Ju (한국전자통신연구원 전파기술연구그룹)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.33, no.10C, 2008 , pp. 836-843 More about this Journal
Abstract
In this paper we derive the theoretical performance of orthogonal STBC algorithms in spatially correlated Rayleigh fading environments and compare their performances for various correlation conditions. We first derive the theoretical BER of the orthogonal STBC algorithms for both M-ary PSK and M-ary QAM modulation schemes by using the eigenvalues of the channel correlation matrix and then investigate the effect of the spatial correlation on the performance for various transmission rates of $1{\sim}4bps/Hz$. Performance analysis illustrates that the Alamouti scheme provides the better performance than the Tarokh scheme for all the transmission rates in highly correlated fading environments with a correlation being larger than 0.9.
Keywords
STBC; MIMO; Alamouti; Tarokh; Correlation;
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