Relay Selection in Network Coded Communications With Power Control

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This paper is concerned with the computationally efficient selection of relays and assignment of transmit power values in wireless networks deploying cooperating nodes. The objective is to minimize the transmitted power required to exchange the data between two nodes. Specifically, the design of routing protocols with multiple store-and-forward relays along a data path is proposed for multiple unicast sessions in a network with randomly distributed nodes. The protocols are based on the knowledge of inter-distances between nodes and, by adapting the transmission power, they control the topology to achieve the minimized total energy in networks with mesh type connectivity.