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Decision-Feedback Detector for Quasi-Orthogonal Space-Time Block Code over Time-Selective Channel  

Wang, Youxiang (영남대학교 정보통신공학과)
Park, Yong-Wan (영남대학교 전자정보공학부)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.34, no.12A, 2009 , pp. 933-940 More about this Journal
Abstract
This paper proposes a robust detection scheme for quasi-orthogonal space-time block code over time-selective fading channels. The proposed detector performs interference cancellation and decision feedback equalization to remove the inter-antenna interference and inter-symbol interference when the channel varies from symbol to symbol. Cholesky factorization is used on the channel Gram matrix after performing interference cancellation to obtain feed forward equalizer and feedback equalizer. It is shown by simulations that the proposed detection scheme outperforms the conventional detection schemes and the exiting detection schemes to time-selectivity.
Keywords
Time-Selective Fading; QO-STBC; DFD; Interference Cancellation;
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