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Energy harvesting cooperative communications

In this paper, we propose a new cooperative wireless transmission in a scenario where the source salvages the energy during the relay's transmission considering the fact that the source does not need to retrieve the transmitted message. We also evaluate a direct wireless transmission with wireless energy transfer as a reference. We analyze the performance of these transmission techniques in terms of outage probability. Our analytical results reveal the advantage of energy salvage in combination with spatial diversity over the direct transmission even if the energy transfer efficiency is considerably low.