中国物理B ›› 2019, Vol. 28 ›› Issue (4): 48901-048901.doi: 10.1088/1674-1056/28/4/048901

• INTERDISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY • 上一篇    

Traffic dynamics considering packet loss in finite buffer networks

Jie Chen(陈杰), Jin-Yong Chen(陈金邕), Ming Li(李明), Mao-Bin Hu(胡茂彬)   

  1. 1 School of Engineering Science, University of Science and Technology of China, Hefei 230026, China;
    2 Civil, Architectural, and Environmental Engineering, University of Texas at Austin, Austin, TX, USA
  • 收稿日期:2018-11-07 修回日期:2019-01-02 出版日期:2019-04-05 发布日期:2019-04-05
  • 通讯作者: Ming Li, Mao-Bin Hu E-mail:minglichn@ustc.edu.cn;humaobin@ustc.edu.cn
  • 基金资助:

    Project supported by the National Key Research and Development Program of China (Grant No. 2016YFC0802508), the National Natural Science Foundation of China (Grant Nos. 11672289 and 61503355), and the support from the Chinese Scholarship Council.

Traffic dynamics considering packet loss in finite buffer networks

Jie Chen(陈杰)1, Jin-Yong Chen(陈金邕)1, Ming Li(李明)1, Mao-Bin Hu(胡茂彬)1,2   

  1. 1 School of Engineering Science, University of Science and Technology of China, Hefei 230026, China;
    2 Civil, Architectural, and Environmental Engineering, University of Texas at Austin, Austin, TX, USA
  • Received:2018-11-07 Revised:2019-01-02 Online:2019-04-05 Published:2019-04-05
  • Contact: Ming Li, Mao-Bin Hu E-mail:minglichn@ustc.edu.cn;humaobin@ustc.edu.cn
  • Supported by:

    Project supported by the National Key Research and Development Program of China (Grant No. 2016YFC0802508), the National Natural Science Foundation of China (Grant Nos. 11672289 and 61503355), and the support from the Chinese Scholarship Council.

摘要:

In real complex systems, the limited storage capacity of physical devices often results in the loss of data. We study the effect of buffer size on packet loss threshold in scale-free networks. A new order parameter is proposed to characterize the packet loss threshold. Our results show that the packet loss threshold can be optimized with a relative small buffer size. Meanwhile, a large buffer size will increase the travel time. Furthermore, we propose a Buffered-Shortest-Path-First (BSPF) queuing strategy. Compared to the traditional First-In-First-Out (FIFO) strategy, BSPF can not only increase the packet loss threshold but can also significantly decrease the travel length and travel time in both identical and heterogeneous node capacity cases. Our study will help to improve the traffic performance in finite buffer networks.

关键词: finite buffer networks, loss threshold, queuing strategy

Abstract:

In real complex systems, the limited storage capacity of physical devices often results in the loss of data. We study the effect of buffer size on packet loss threshold in scale-free networks. A new order parameter is proposed to characterize the packet loss threshold. Our results show that the packet loss threshold can be optimized with a relative small buffer size. Meanwhile, a large buffer size will increase the travel time. Furthermore, we propose a Buffered-Shortest-Path-First (BSPF) queuing strategy. Compared to the traditional First-In-First-Out (FIFO) strategy, BSPF can not only increase the packet loss threshold but can also significantly decrease the travel length and travel time in both identical and heterogeneous node capacity cases. Our study will help to improve the traffic performance in finite buffer networks.

Key words: finite buffer networks, loss threshold, queuing strategy

中图分类号:  (Networks and genealogical trees)

  • 89.75.Hc
45.70.Vn (Granular models of complex systems; traffic flow) 05.70.Fh (Phase transitions: general studies)