Interference-Aware MAC Protocol for Wireless Networks by a Game-Theoretic Approach

—We propose an interference-aware MAC protocol using a simple transmission strategy motivated by a gametheoretic approach. We formulate a channel access game, which considers nodes concurrently transmitting in nearby clusters, incorporating a realistic wireless communication model - the SINR model. Under inter-cluster interference, we derive a decentralized transmission strategy, which achieves a Bayesian Nash Equilibrium (BNE). The proposed MAC protocol balances network throughput and battery consumption at each transmission. We compare our BNE-based decentralized strategy with a centralized globally optimal strategy in terms of efficiency and balance. We further show that the transmission threshold should be adaptively tuned depending on the number of active users in the network, crosstalk, ambient noise, transmission cost, and radio-dependent receiver sensitivity. We also present a simple dynamic procedure for nodes to efficiently find a Nash Equilibrium (NE) without requiring ...

• Type: Conference
• Year: 2009
• Where: INFOCOM
• Authors: HyungJune Lee, Hyukjoon Kwon, Arik Motskin, Leonidas J. Guibas
• Keywords: Communications, Decentralized Transmission Strategy, INFOCOM 2009, Simple Transmission Strategy, Transmission Strategy