牛新征 周明天 佘堃
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摘要： 在移动P2P网络中，部分自私的移动节点只是大量地消耗已有网络资源而不提供自己的资源。考虑到移动P2P网络的资源有限性以及部分节点具有自私行为的特点，提出了一种基于博弈论的协作激励机制。该机制根据移动节点的不同贡献大小来提供不同网络服务质量，最大限度地鼓励了每个移动节点参与协作和共享。同时，详细描述和分析了协作激励机制中的网络资源分配策略，并且证明了该协作激励机制的博弈存在一个稳定的纳什（Nash）均衡。通过仿真实验发现，该激励机制有效地激发了移动节点间的协作，优化了整个网络的性能。同现有的协作激励策略相比，提高了数据包转发率等。
