首先,本文主要研究Ad Hoc网络上存在的自私节点,它会大大影响网络的性能,甚至网络的正常运作。通过进一步研究发现,节点自私性源于节点之间缺乏相互协作。在研究了节点之间的协作与节点自私性的关系后,最后,本文提出了一个节点协作增强机制,用于克服这种自私性给Ad Hoc网络带来的负面影响。 First of all, this paper mainly studies the selfish node existing on Ad Hoc network, which will greatly affect the performance of the network and even the normal operation of the network. Through further research, we found that the selfishness of nodes stems from the lack of mutual cooperation between nodes. After studying the relationship between nodes’ cooperation and node selfishness, at last, this paper proposes a node cooperation enhancement mechanism to overcome the negative effect that selfishness brings to Ad Hoc network.