Abstract: To satisfy different communication requirements of multiple users in the orthogonal frequency division multiple access (OFDMA) wireless local area network (WLAN) system downlink transmission,a resource allocation algorithm based on noncooperation game was presented.In this paper game theory is used as an efficient tool to study resource allocation in WLAN with quality-of-service (QoS),and different channel quality requirements are converted into multiple users’ noncooperation game problems for different channels resource allocation.The Nash equilibrium problem (NEP) is divided into sub-problems about variational inequality (VI).The sub-problems are solved by convex optimization function.The numerical analysis results show that the proposed algorithm in this paper is better in a trade-off among fairness about resource allocation and data transmission rate.

Key words: Resource allocation,Noncooperation game,Orthogonal frequency division multiple access (OFDMA),Nash equilibrium,Convex optimization