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由于移动P2P网络的开放性自组织等特性,以及节点自身资源受限等原因,移动P2P网络中的节点往往表现出自私性,这极大地降低了网络系统的整体效用.针对该问题,给出一种移动P2P网络中基于交易模型的节点激励机制.该激励机制采用虚拟货币支付方式,并根据节点拥有的虚拟货币量、能量、缓存、带宽以及共享文件资源的属性对每次资源共享交易进行定价.通过博弈分析建立节点的约束机制,激励节点进行资源共享合作.分析与实验结果表明该激励机制能够有效地提高整个网络系统的资源共享交互成功率,降低系统的能量消耗,提高系统的整体效用.
Due to the characteristics of mobile ad hoc networks such as openness and self-organization, as well as the limited resources of nodes themselves, nodes in mobile P2P networks tend to exhibit selfishness, which greatly reduces the overall effectiveness of networked systems. A motivation mechanism based on transaction model in mobile P2P network is proposed, which uses virtual currency payment method and performs resource sharing transactions on the basis of virtual currency amount, energy, cache, bandwidth and attributes of shared file resources owned by nodes Pricing, establishing the constraint mechanism of nodes through the game analysis, and motivating nodes to cooperate in resource sharing.The analysis and experimental results show that the incentive mechanism can effectively improve the success rate of resource sharing and interaction in the whole network system, reduce the system energy consumption and improve the overall system utility.