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针对多用户正交频分多址(orthogonal frequency division multiple access,OFDMA)干扰信道自优化问题,研究其功率和信道资源分配策略,提出了一种新的分布式的资源优化分配算法.各用户只需要知道自己的信道状态信息就可以通过迭代注水的方式对系统资源进行合理分配,实现速率最大化.通过对注水算法增加干扰强度限制条件的方法,优化资源配置,提高系统的效率,并用线性规划理论将其实现.仿真结果表明,该算法在性能上比纳什博弈算法有很大的提高.
In order to solve the self-optimization problem of multi-user orthogonal frequency division multiple access (OFDMA) interfering channel, the power and channel resource allocation strategies are studied and a new distributed resource allocation algorithm is proposed. It needs to know its own channel state information to allocate system resources rationally by iterative waterflood to maximize the rate.According to the method of increasing the interference strength limit of waterflooding algorithm and optimizing the resource allocation to improve the system efficiency, The theory will be realized.The simulation results show that this algorithm has a great improvement in performance over the Nash game algorithm.