MIMO System Combining Space-Time Block Codes and VBLAST
Wang Zhong-peng①②;Qiu Zhong-yuan③;Wu Wei-ling①
①School of Information Engineering, Beijing Univ. of Posts and Telecomm., Beijing 100876, China;②Department of Computer Engineering, Zhejiang University of Science and Technology, Hangzhou 310012, China;③Dept.of Mathematics & Physics, Liaoning Institute of Technology,Jinzhou 121001 China
Abstract：Space-Time Block Codes (STBC) is a scheme based on diversity-oriented transmission while VBLAST is another scheme based on spatial multiplexing; The performances of the two different MIMO systems are both degraded in correlated channels, however the performance of the former is better than the later. This paper proposes a trade-off scheme that the transmit antennas are divided into group meantime space-time block codes are applied to the different groups, VBLAST algorithm is used in the receiver. Simulation results show that performance of proposed scheme greatly gains over the VBLAST.
2005, Vol. 27 
