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

作者：Liu Yu Tao^*; Tan Xue Zhi; Anghuwo Anna Auguste; Liu Shuai

来源：Journal of Harbin Institute of Technology, 2011, 18(6): 58-62.

• Analysis results
• Nash bargaining
• Primary systems
• Proportional fair
• Repeated games
• Spectrum demand
• Spectrum sharing
• Stable equilibrium
• Utility
• Utility functions
• Wireless environment

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.

• 出版日期2011