无线协作网络中一种基于节点自私性的休眠模式研究

he key technical feature of cooperative communication technologies is to encourage the device with single antenna to be involved in the cooperation by sharing the antenna and create a virtual antenna array, and thus significantly improve the reception reliability. However, due to their limited processing capability, storage space, battery capacity and other resources, the resource of network nodes always used up and exit the network prematurely if their resource consumption is out of consideration, and thus affecting the wireless network performance to a large extent. In this paper, the situation that the node has a certain degree selfish behavior is taken into consideration, and the concept of the selfishness index is introduced to characterize the degree of the selfishness of a node. And on this basis, a new kind of wireless cooperative network sleep mode is presented, which is based on the selfishness of the node, and compare it with the traditional wireless network sleep mode. By the simulation on the percentage of average energy saving, the results show that the scheme has greatly improved the percentage of average energy saving of the nodes with higher selfishness, and thus provide a reference for the optimal allocation of resources in the wireless cooperative networks.