【摘要】 针对多小区OFDMA系统中的上行动态子载波和功率分配问题,提出了一种基于潜博弈模型的分布式功率控制算法,各移动台根据本地信息按照最佳反应动态原则依次更新自己的功率,理论分析和仿真结果均表明系统具有惟一的稳定状态.该功率控制算法能迅速收敛于稳定状态.与纯迭代注水算法相比,该算法对系统的能量效率有显著提高.更多还原

【Abstract】 A potential game theoretic solution for distributed uplink dynamic subcarrier and power allocation in multi-cell OFDMA systems is presented,with each mobile station updating its own power level based on local information according to the best response dynamic.Theoretical analysis and simulation results show that there exists a unique steady state and that the proposed distributed power control algorithm can converge to the steady state quickly.The algorithm can achieve a much higher energy efficiency compared with the pure iterative water-filling algorithm.更多还原