A novel mechanism based on Nash bargaining for primary system game in cognitive radios  

作　　者：刘玉涛 Anna Auguste Anghuwo 谭学治 刘帅 

机构地区：[1]Communication Research Center,Harbin Institute of Technology

出　　处：《Journal of Harbin Institute of Technology(New Series)》2011年第6期58-62,共5页哈尔滨工业大学学报（英文版）

基　　金：Sponsored by the National High Technology Research and Development Program of China(863Program)(Grant No.2008AA12Z305)

摘　　要：According to the utility function and spectrum demand of the cognitive users,a novel mechanism based on Nash bargaining for primary system game was proposed under the wireless environment of Rayleigh fading.On the basis of this mechanism,we proposed a new distributed bargaining algorithm based on Nash product;then the spectrum prices and system utilities were obtained.Theoretical analysis results showed that with a close total utility to the optimal,the Nash bargaining mechanism cannot only improve the fairness between primary systems remarkably,but also reach to the stable equilibrium in finitely repeated games.Finally,simulation results were given to demonstrate the correctness of these conclusions and the efficiency of the algorithm.According to the utility function and spectrum demand of the cognitive users, a novel mechanism based on Nash bargaining for primary system game was proposed under the wireless environment of Rayleigh fa- ding. On the basis of this mechanism, we proposed a new distributed bargaining algorithm based on Nash product; then the spectrum prices and system utilities were obtained. Theoretical analysis results showed that with a close total utility to the optimal, the Nash bargaining mechanism cannot only improve the fairness between pri- mary systems remarkably, but also reach to the stable equilibrium in finitely repeated games. Finally, simulation results were given to demonstrate the correctness of these conclusions and the efficiency of the algorithm.

关 键 词：cognitive radio spectrum sharing Nash bargaining proportional fair UTILITY 

分 类 号：TN929.5[电子电信—通信与信息系统]