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首页> 外文期刊>Concurrency, practice and experience >Subcarrier Allocation and Cooperative Partner Selection Based on Nash Bargaining Game for Physical Layer Security in OFDM Wireless Networks
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Subcarrier Allocation and Cooperative Partner Selection Based on Nash Bargaining Game for Physical Layer Security in OFDM Wireless Networks

机译：OFDM无线网络中基于纳什讨价还价博弈的子载波分配和合作伙伴选择

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Most orthogonal frequency division multiplexing (OFDM) cooperative schemes in wireless communicationrnsystem are poor in secure transmission. Based on the Nash bargaining game (NBG), this paper presents arnmethod of OFDM system cooperative scheme restricted in physical layer security. In the model, eachrnwireless node can act as not only a source node, but also a potential relay node. The sub-carrier allocationrnproblem among selfish nodes is formulated as a two-persons bargaining game to guarantee fairness. It isrnproved that the Nash bargaining solution (NBS) of sub-carriers allocation is existence of unique Nashrnequilibrium. Based on the bargaining algorithm and the Hungarian method, a multiple-users partnerrnselection algorithm is proposed in this paper. Simulation results indicate that the subcarrier allocationrnfairness is dependent on how much rate increase its partner can make. The proposed partner selectionrnalgorithm based on the Hungarian method can improve the overall secrecy rate of the network.
机译：无线通信系统中大多数正交频分复用（OFDM）协作方案在安全传输方面均较差。基于纳什讨价还价博弈（NBG），提出了物理层安全性受限的OFDM系统协作方案的方法。在该模型中，每个无线节点不仅可以充当源节点，而且还可以充当潜在的中继节点。自私节点之间的子载波分配问题被表述为两人讨价还价博弈，以确保公平。证明了子载波分配的纳什讨价还价解决方案（NBS）存在唯一的纳什均衡。基于讨价还价算法和匈牙利方法，提出了一种多用户伙伴选择算法。仿真结果表明，子载波分配的公平性取决于其伙伴可以提高多少速率。提出的基于匈牙利方法的伙伴选择算法可以提高网络的整体保密率。

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