Concurrent transmissions by Bayesian interference game in wireless ad hoc networks

The paper proposes a decentralized concurrently transmission strategy in a single-channel by non-cooperate game. Firstly, we formulate a channel access game model, which considers multiple nodes concurrent transmissions in a single-channel for wireless ad hoc networks. We identify the utility function balanced throughput and cost, and then calculate a Nash equilibrium solution (NES) as the transmission threshold. It allows each node to determine whether or not it is feasible to transmit concurrently depending on channel conditions. We prove the existence and uniqueness of a Bayesian Nash Equilibrium Solution of the game, and compute it using numerical methods. Simulation results show the proposed approach is feasible. On the basis, we propose multiple concurrent transmissions framework by game theory for wireless ad hoc networks. The framework enables multiple transmissions to proceed concurrently in a single-channel, which improves network throughput and bandwidth efficiency.