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Several half-duplex decode-and-forward two-way relaying protocols that efficiently exploit quantized channel state information (CSI) at the transmitters (CSIT) are investigated. Adapting the number of channel uses for each relaying phase and the transmit power based on limited CSIT is shown to result in a significant improvement in the diversity-multiplexing tradeoff (DMT). With CSI feedback from...
In this paper, based on amplify-and-forward protocol, we design both transmitters and receiver of a cooperative network, such that the equivalent communication link achieves a given target rate using the minimal overall transmit sum power. In particular, since the problem is not convex, the design method makes use of an iterative procedure which determines the power allocation by the best eigenvector...
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