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Alamouti distributed orthogonal space-time block coding has emerged as a diversity scheme that can achieve high spectral efficiency over a wireless networks. This paper employs the relay selection to maximize the received signal-to-noise ratio of Alamouti distributed orthogonal space-time block coding (Al-DSTC) in a two-relay networks. It makes collective use of the Alamouti distributed orthogonal...
This paper examines the impact of relay selection on the performance of Alamouti distributed orthogonal space-time block coding (Al-DSTC) in a two-relay network. The SNR-maximizing is implemented at the receiver based on selecting the relay to cooperate or not. The receiver can always find the optimal selected relay by exhaustive search where the number of relays is only two. It is shown in this work...
The Forced Symbol Method (FSM) lowers significantly the error rate, especially in the error floor region. The core of the FSM is the application of repeated decoding, with one or more least reliable symbols being forced to certain values, when an error is detected. The main drawback of the FSM method is its peak complexity which can be high. This paper presents a new approach for reducing the peak...
Recently, a new approach to the problem of data detection for communications over band-limited channels with unknown channel-impulse response is proposed (Vaidis and Weber, IEEE Trans. Commun. 46 (February 1998) 232). This approach utilizes the Viterbi algorithm (VA) for maximum-likelihood sequence estimation (MLSE) in a block adaptive technique for simultaneous channel and data estimation. In this...
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