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In energy-constrained wireless networks such as sensor networks, it is important to maximize power efficiency by minimizing power consumption for a given quality of service such as the data rate; it is equally important to evenly or fairly distribute power consumption to all nodes to maximize the network life. In this paper, we develop optimal power control methods to balance the tradeoff between...
We consider an energy constrained two-way wireless relay system, where a bidirectional connection between two terminals TA and TB is established via one decode-and-forward (DF) relay R. We study the optimal power allocation that minimizes the total transmit power consumption, under given requirements on the end-to-end bit error rate (BER) at TA and TB. By approximating the non-convex BER constraints,...
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