Netinfo Security ›› 2022, Vol. 22 ›› Issue (12): 87-95.doi: 10.3969/j.issn.1671-1122.2022.12.010

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Performance Analysis of P2P Networks Based on N-Preemptive Strategy and Variable Number of Players

YAN Miao, MA Zhanyou(), JIANG Zishu, QIN Guoli   

  1. School of Science, Yanshan University, Qinhuangdao 066004, China
  • Received:2022-08-26 Online:2022-12-10 Published:2022-12-30
  • Contact: MA Zhanyou E-mail:mzhy55@ysu.edu.cn

Abstract:

In this paper, an M/M/c queuing model with variable number of servers was established based on the P2P node online mechanism, while N-Preemptive priority, impatience and late startup strategies were introduced. A three-dimensional Markov process was constructed for the length of two types of content and the number of online players, and the performance indexes of the system in steady state were derived using matrix geometric solution method, and the relationship between the performance indexes and the change of parameters was analyzed through numerical experiments. And by establishing the benefit function with reasonable charges for P2P nodes, the Nash equilibrium between P2P nodes and benefits is analyzed and the optimal social benefits is obtained within a certain range, which provides a theoretical basis for the scheduling of P2P nodes.

Key words: N-preemptive priority, M/M/c queue, late startup, matrix geometry solution, P2P networks

CLC Number: