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Chaotic oscillations in user-centric cognitive radio networks and their control

机译:以用户为中心的认知无线电网络中的混沌振荡及其控制

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In the cognitive radio networks, spectrum resources are dynamically shared among the users for radio resource usage optimisation. However, depending on the distributed decision-making algorithms of the spectrum sharing procedure, undesirable chaotic switching may occur in the network. For chaotic non-linear systems, the chaos control theory has been proposed and applied to a wide variety of non-linear systems to stabilise such systems. In this paper, the delay feedback method for chaos control is applied to the chaotic phenomena in the cognitive radio networks. We show that our method can stabilise the chaotic oscillations in the user-centric cognitive radio networks. By comparisons with conventional parameter tuning methods, we confirm that our control approach is more efficient and faster to stabilise the cognitive radio systems.
机译:在认知无线电网络中,频谱资源在用户之间动态共享,以优化无线电资源的使用。但是,根据频谱共享过程的分布式决策算法,网络中可能会发生不希望的混沌切换。对于混沌非线性系统,已经提出了混沌控制理论,并将其应用于各种非线性系统以稳定此类系统。本文将混沌控制的延迟反馈方法应用于认知无线电网络中的混沌现象。我们表明,我们的方法可以稳定以用户为中心的认知无线电网络中的混沌振荡。通过与常规参数调整方法的比较,我们确认了我们的控制方法可以更有效,更快地稳定认知无线电系统。

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