A full-rate, full-diversity four-antenna quasi-orthogonal space-time block code
IEEE Transactions on Wireless Communications
Distributed space-time-coded protocols for exploiting cooperative diversity in wireless networks
IEEE Transactions on Information Theory
Cooperative diversity in wireless networks: Efficient protocols and outage behavior
IEEE Transactions on Information Theory
A simple transmit diversity technique for wireless communications
IEEE Journal on Selected Areas in Communications
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In this paper, we propose a modified quasi-orthogonal space-time block code that the decoder decouples the symbol detection problem into not pairs of transmitted symbols but each symbol. And then, it is applied to cooperative communication systems with 4 transmit antennas. Simulation results present the BER performances in cases of amplify-and-forward and decode-and-forward.