With the rapid development of Internet applications and the increasing demand of data services

there are great challenges in wireless networks.In this paper

the optimization model of joint base-station association

power allocation and channel allocation is proposed.The optimization objective is to maximize the throughput of the network

and to ensure the fairness of the user under the constraints of the individual user quality-of-service.An iterative algorithm is proposed to solve the optimization model

and the simulation results show that the proposed algorithm can effectively improve the network throughput.