Abstract
In order to analyze the performance of P2P networks and solve the problem of excessive energy consumption of P2P network system. In this paper, the peers that resource requests in a P2P net-work are abstracted into customers and the peers that provide services are abstracted into servers. Based on the classical queueing model, two types of servers bulk service and asynchronous vacation strategies are introduced to establish the M/Md/c+k(0≤k≤d) queueing model. The steady-state distribution of the system is solved by using the matrix-geometric solution method, and then the performance indicators such as the average queue length and the average waiting time of the system are derived. This paper also focuses on the energy consumption of the system in different periods, and puts forward the Nash equilibrium and the social optimal strategy to find appropriate parameters to improve the problem of high energy consumption in P2P networks.