Cooperation and coordination in the turn-taking dilemma
Proceedings of the 9th conference on Theoretical aspects of rationality and knowledge
Spectrum management policy options
IEEE Communications Surveys & Tutorials
Improving the system capacity of broadband services using multiple high-altitude platforms
IEEE Transactions on Wireless Communications
Achievable rates in cognitive radio channels
IEEE Transactions on Information Theory
IEEE Journal on Selected Areas in Communications
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This paper presents several fundamental concepts of game theory, and shows how they relate to the game formulation for a small cluster of opportunistic wireless nodes in cognitive radio networks. It is shown that in some resource allocation scenarios, it may be an optimal strategy for the wireless nodes to endure short-term losses for longer-term gains. In such scenarios, maximum total payoff may be achieved not by simultaneous mutual cooperation, but by taking turns defecting. The paper presents a novel idea of modeling cooperation and coordination for the opportunistic spectrum access as a turn-taking Prisoner's dilemma. In our model, a small cluster of cognitive wireless nodes opportunistically access spectrum using spectrum shaped Oppermann sequences. Simulation results show that for the proposed resource allocation game turn-taking memory two strategies outperform traditional tit-for-tat and grim-trigger strategies.