Graph-Based Path Selection and Power Allocation for DF Relay-Aided Transmission
Lu Lu, Dawei He, Qiqin Xie, Geoffrey Ye Li, Xingxing Yu · IEEE Wireless Communications Letters · 2017
In this letter, we study path selection and power allocation for decode-and-forward relay-aided systems with multiple source, relay, and destination nodes. To take fairness among different links into account, we aim at maximizing the minimum source-relay-destination link rate under two scenarios depending on whether source nodes have their targeted destination nodes or not. For each scenario, graph-based algorithms are proposed to find the optimal solutions for cases with/without sum power constraints on relay nodes.