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在囚徒受困模型下,自私理性的认知无线电用户通过扩展自身所占频谱,最大化自身速率,并最终导致了纳什均衡。但这并未达到帕累托最优,通过无限次重复博弈,可以看到,当认知无线电用户对未来收益的预期大于某个下限时,在每个阶段博弈中,认知无线电用户终于选择合作作为他们的最佳策略,并使总体速率达到了帕累托最优。最后我们对认知无线电用户的各种策略进行了仿真并进行了比较。
Under the Prisoners’ Stranded Model, selfish selfish cognitive radio users maximize their own rate by expanding their own spectrum and eventually leading to Nash equilibrium. But this does not reach the Pareto optimality. Through the infinite repeated game, we can see that in the stage game, the cognitive radio user finally chooses when the expectation of the future radio of the cognitive radio user is greater than a certain lower limit Cooperation as their best strategy, and the overall rate reached Pareto optimal. Finally, we simulate various strategies of cognitive radio users and compare them.