本文在传统分布式功率控制算法的基础上，考虑到代价函数的非负性，且存在一个正的最小值的特性，采用用户发射功率和信干比来定义用户的代价函数，引用了一种基于代价函数的功率控制算法。最后，本文利用MATLAB工具对该算法进行了仿真分析，验证了算法的有效性-Based on the traditional distributed power control algorithm based on, taking into account the non-negative Daijia function, and there is a positive minimum of features, with user transmit power and signal to interference ratio to define the user cost function, based on a reference cost function of the power control algorithm. Finally, the algorithm using MATLAB simulation tools for analysis and verification of the validity of the algorithm