Effects of packet retransmission with finite packet lifetime on traffic capacity in scale-free networks

Author:

Jiang Zhong-Yuan1,Ma Jian-Feng12

Affiliation:

1. School of Cyber Engineering, Xidian University, Shaanxi 710071, P. R. China

2. School of Computer Science and Technology, Xidian University, Shaanxi 710071, P. R. China

Abstract

Existing routing strategies such as the global dynamic routing [X. Ling, M. B. Hu, R. Jiang and Q. S. Wu, Phys. Rev. E 81, 016113 (2010)] can achieve very high traffic capacity at the cost of extremely long packet traveling delay. In many real complex networks, especially for real-time applications such as the instant communication software, extremely long packet traveling time is unacceptable. In this work, we propose to assign a finite Time-to-Live (TTL) parameter for each packet. To guarantee every packet to arrive at its destination within its TTL, we assume that a packet is retransmitted by its source once its TTL expires. We employ source routing mechanisms in the traffic model to avoid the routing-flaps induced by the global dynamic routing. We compose extensive simulations to verify our proposed mechanisms. With small TTL, the effects of packet retransmission on network traffic capacity are obvious, and the phase transition from flow free state to congested state occurs. For the purpose of reducing the computation frequency of the routing table, we employ a computing cycle [Formula: see text] within which the routing table is recomputed once. The simulation results show that the traffic capacity decreases with increasing [Formula: see text]. Our work provides a good insight into the understanding of effects of packet retransmission with finite packet lifetime on traffic capacity in scale-free networks.

Publisher

World Scientific Pub Co Pte Lt

Subject

Computational Theory and Mathematics,Computer Science Applications,General Physics and Astronomy,Mathematical Physics,Statistical and Nonlinear Physics

Cited by 3 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Lossless contention ultraviolet MAC protocol based on dynamic bandwidth allocation;Journal of Optical Communications and Networking;2024-09-11

2. Energy-constrained transmission on hybrid communication networks;International Journal of Modern Physics C;2018-11

3. Packet transmission with a lifetime constraint in scale-free networks;International Journal of Modern Physics C;2018-09

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