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We consider a source-destination pair assisted by multiple decode-and-forward relays without channel state information at transmitter (CSIT). We investigate three schemes exploiting spatial diversity including multiple-relay cooperation (MR-Coop), conventional multiple-relay relaying (MR-Relay), and multiple-input-single-output (MISO). The total power is equally allocated to transmission partners...
Cooperative communication is an efficient technology to combat fading in wireless networks. In this paper, we propose an opportunistic cooperation algorithm with decode- and-forward strategy under a total power constraint. The relay selection and power allocation are jointly optimized to maximize the minimum of the weighted channel strengths between the links of source-relay and relay-destination...
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