Cooperative game-theoretic approach to spectrum sharing in cognitive radios

摘要: In this paper, a framework for modeling multi-user, multi-band, spectrum sensing and sharing problem in cognitive radios as cooperative game (CG) characteristic form is proposed. Secondary users (SUs) jointly sense the cooperatively detect primary user (PU) activity identifying unoccupied bands. A CG formulated to quantify share benefits of cooperation by accessing identified idle channels fair manner. The function describing based on worth SUs, which calculated according amount work done coalition increasing awareness about state that may also be seen reduction uncertainty PU activity. Such CGs are balanced super-additive, making resource allocation possible providing SUs with an incentive cooperate grand coalition. Based their worth, get payoffs computed using singleton solutions. use earned from bid through scheduling mechanism, particular, socially optimal Vickrey-Clarke-Groves auction. Simulation results show that, comparison other models, proposed model provides best balance among fairness, performance terms data rates obtained SUs. HighlightsModeling game.Secondary earn detecting channels.Vickerey-Clarke-Grove auction used mechanism allocate channels.Allocation secondary cooperate.Proposed achieves performance.