Research on Power Control Algorithm Based on Game Theory in Cognitive Radio System

摘要：

The power control in multi-antenna cognitive radio system has been researched with the idea of game theory. In the system, to gain its own maximal utility, every user improves the transmitting power selfishly not considering other users. so the other users choose the corresponding strategies, the interactive and repeated process is actually a kind of non-cooperative game. that will reach a balanced state that is called Nash equilibrium. which makes the system achieves maximal utility. Establish the game theory model for power control problem, construct the global information transmission rate as the utility function, and prove the existence of Nash equilibrium in the game process, then propose to search the Nash equilibrium point making use of the chaotic optimization algorithm, derive the transmission power of all users. The experimental results illustrate that this method gets the transmission power that makes the global information transmission rate maximal with finite game iterations, which proves the proposed algorithm efficient

关键词： cognitive radio power corurol game theory chaotic optimization

作者: Yanli Hou Yafang Wang Boning Hu

作者单位: Institute of Information Science and Engineering Hebei University of Science and Technology Shijiazhuang, China

会议类型: 国际会议

会议名称: 2010 2nd International Conference on Signal Processing System(2010年信号处理系统国际会议 ICSPS 2010)

会议地点: 大连

会议语种:英文

页码: 614-618

在线出版日期: 2010-07-05（万方平台首次上网日期，不代表论文的发表时间）