Title :
Optimal Linear Precoder Design for Space-Time Block Coded Systems
Author :
Zhao, Zhenshan ; Xu, Guozhi
Author_Institution :
Dept. of Electron. Eng., Shanghai Jiao Tong Univ.
Abstract :
Taking the pairwise error probability (PEP) as the performance criterion and exploiting the channel covariance information at the transmitter, this paper studies the optimal linear precoder design of the correlated multiple-input multiple-output (MIMO) wireless system. The precoder can be used along with any space-time block codes (STBC), which is an extension of Y. Zhao et al. (2004) . The optimal beamforming direction of the precoder is proved to match the structure of STBC and transmit correlation matrix. The optimal power allocation scheme is related to transmit correlation matrix, receive correlation matrix and STBC. The quasi-orthogonal space-time block codes (QSTBC) is taken as an illustration to investigate the performance of the optimal precoder
Keywords :
MIMO communication; block codes; error statistics; linear codes; matrix algebra; precoding; space-time codes; MIMO; STBC; correlated multiple-input multiple-output wireless system; optimal beamforming direction; optimal linear precoder design; pairwise error probability; quasi-orthogonal space-time block codes; receive correlation matrix; transmit correlation matrix; AWGN; Array signal processing; Block codes; Capacity planning; Error probability; Fading; MIMO; Pairwise error probability; Power system modeling; Transmitters;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing, 2006. WiCOM 2006.International Conference on
Conference_Location :
Wuhan
Print_ISBN :
1-4244-0517-3
DOI :
10.1109/WiCOM.2006.14