System performance enhancement using NASH Bargaining Solutions for cognitive radio system

This paper proposed a cooperative spectrum sharing game method applied to multi-cells cognitive radio system. The method is based on Nash Bargaining Solution (NBS) which can provide both efficient and fair resource sharing results. Path Gain Ratio (PGR) strategy has been applied to the multi-cells system as spectrum etiquette for user-pair selection. Simulation results have shown that the method given in this paper offers quite satisfying performance on both throughput and fairness.