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A Cross-Layer Game Theoretic Solution for Interference Mitigation in Wireless Ad Hoc Networks

In this paper, we propose a game theoretic cross-layer framework to efficiently mitigate interference in wireless ad hoc networks. Our solution enforces cooperation between layers, through cross-layer design, as well as among nodes, through metrics that account for the potential impact of the nodes' individual decisions on their neighborhood. The proposed approach is to jointly design power control and topology/interference aware routing, and to model the behavior of the network using a game theoretic framework. The performance metrics considered are energy consumption and achievable throughput for an end-to-end path. We prove the convergence of the joint interference mitigation algorithm at three levels: at the physical layer (convergence of the power control), at the network layer (convergence of routing game), and across layers (the joint algorithm does not lead to oscillatory behavior). Our simulation results show that significant performance gains in both energy and throughput are achieved compared to the current state-of-the-art approaches