Search for: [Description = "The paper deals with transmitter diversity antenna selection techniques \(ASTs\) for wireless channels utilizing differential space\-time block codes \(DSTBCs\). The proposed ASTs tend to maximize the signal\-to\-noise ratio \(SNR\) of those channels. Particularly, we propose here the so\-called general \(M,N\;K\) AST\/DSTBC scheme for such channels. Then, based on this AST, we propose two modified ASTs which are more amenable to practical implementation, namely the restricted \(M,N\;K\) AST\/DSTBC scheme and the \(N \+ ¯N,N\;K\) AST\/DSTBC scheme. The restricted \(M,N\;K\) AST\/DSTBC scheme provides relatively good bit error performance us\- ing only one feedback bit for transmission diversity purpose, while the \(N\+ ¯N,N\;K\) AST\/DSTBC scheme shortens the time required to process feedback information. These techniques remarkably improve bit error rate \(BER\) performance of wireless channels using DSTBCs with a limited number \(typi\- cally 1 or 2\) of training symbols per each coherent duration of the channel. Simulations show that the proposed AST\/DSTBC schemes outperform the DSTBCs without antenna selection even with only 1 training symbol."]

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