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| 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 |
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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.
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Received: 26 February 2004
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2005, Vol. 27 
