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Antenna Selection with Differential Modulation Based on Quasi-Orthogonal Space-Time Block Code

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4 Author(s)
Souyin Liu ; Department of Electronic and Information Engineering, Huazhong Normal University, Wuhan 430079, China. ; Wenwu Xie ; Jinjing Zhan ; Fan Li

In this paper, in order to reduce the complexity of the receiver, the receive antenna selection (AS) is applied to the systems with the differential space-time modulation (DSTM) scheme based on quasi-orthogonal space-time block coding (QO-STBC), in which four transmit-antennas and multiple receive-antennas are equipped at the transmitter and receiver, respectively. Then a novel selection rule for this system is derived based on the maximum a posteriori probability (MAP) criterion. The corresponding simulations are carried out to prove the performance of our proposed scheme with our derived selection rule. Results show that: (1) our proposed scheme combined with our derived selection rule can obtain better performance compared with the single receive antenna systems; (2) it has the same diversity and only a little loss in coding gain but much lower complexity compared with the multiple receive-antennas systems without receive antenna selection.

Published in:

2006 International Conference on Communication Technology

Date of Conference:

27-30 Nov. 2006