OFDMA系统中基于多目标优化的无线资源分配算法

Radio resource allocation algorithm based on multi-objective optimization in OFDMA systems

本文提出了OFDMA系统中基于多目标优化的无线资源分配算法。针对不同业务的QoS要求,建立多目标优化模型,并提出一种多业务分级分配算法通过确定优先级、引入合适的参数获得次优解。仿真结果表明,该算法不但能够保证不同业务的QoS要求,而且能够兼顾相同业务的用户之间的公平性。

A novel radio resource allocation algorithm based on multi-objective optimization is proposed for multi-service OFDMA systems in this paper. A multi-objective optimal model is established for resource allocation, according to the repective QoS requirements of different services. The suboptimal solution can be achieved by prioritizing allocation and adopting proper parameter. Simulation results explicitly verify our expectation that the proposed algorithm can meet diverse QoS requirements, and balance the fairness among users with the same service.