摘要
针对CDMA认知无线网络的反向链路,在不损害主用户通信的前提下,为次用户的数据通信设计一种新的功率控制算法。该算法以相等信干噪比为前提,使用基于能量效率的效用函数,求解相应的函数最大值问题。该算法复杂度低,用户公平性好,其功率解满足帕雷托有效性。仿真结果表明,与非合作博弈功率控制相比,该算法能有效提高CDMA系统中次用户的能量利用效率,并减轻次用户对主用户的干扰。
For data communication of secondary users in CDMA cognitive radio network,a new uplink power control algorithm was presented without disturbing primary users.The proposed algorithm is based on equal SINR （Signal to Interference plus Noise Ratio） and energy-efficient utility function to solve a corresponding maximization problem.The algorithm is of low complexity and good user fairness,and its power solution is Pareto efficient.The simulation results show that compared with power control based on non-cooperative game,the proposed algorithm can effectively improve energy efficiency of secondary users and reduce the interference upon primary users.
出处
《电子技术应用》
北大核心
2013年第10期105-108,共4页
Application of Electronic Technique
基金
国家重点基础研究发展计划课题(2009CB320401)
