中国邮电高校学报(英文) ›› 2015, Vol. 22 ›› Issue (2): 60-68.doi: 10.1016/S1005-8885(15)60640-9

• Networks • 上一篇    下一篇

New spray and wait protocol with node activity in heterogeneous delay tolerant networks

吴家皋1,叶珂1,朱义吉1,刘林峰2   

  1. 1. 南京邮电大学
    2. 南京邮电大学计算机学院
  • 收稿日期:2014-07-17 修回日期:2014-09-30 出版日期:2015-04-30 发布日期:2015-04-22
  • 通讯作者: 吴家皋 E-mail:jgwu@njupt.edu.cn
  • 基金资助:

    基于信号不规则性的水声传感器网络关键技术的研究;面向海洋监测应用的无线传感器网络体系结构与拓扑控制技术的研究;水声传感器网络中移动性问题及关键技术的研究;移动P2P空间数据索引网络及其排队模型的研究

New spray and wait protocol with node activity in heterogeneous delay tolerant networks

  • Received:2014-07-17 Revised:2014-09-30 Online:2015-04-30 Published:2015-04-22
  • Contact: Jia-Gao WU E-mail:jgwu@njupt.edu.cn

摘要: The spray and wait protocol is a classic copy-limited spraying protocol in delay tolerant networks, in which, the binary spray mode can be improved for heterogeneous delay tolerant networks. In this article, a new conception of node activity was defined to weigh the importance of nodes in aspect of message dissemination in the whole network. A new spray and wait protocol with node activity was proposed to improve the performance in heterogeneous delay tolerant networks. A mathematical model used under varieties of the spraying protocols was also proposed to analyze the expected delay of the protocol. Simulations show that the spray token proportion with node activity is optimal and the new protocol is of better performance than other related protocols. Therefore, this protocol has high efficiency and good scalability.

关键词: delay tolerant network (DTN), routing protocol, spray and wait, node activity, mathematical model

Abstract: The spray and wait protocol is a classic copy-limited spraying protocol in delay tolerant networks, in which, the binary spray mode can be improved for heterogeneous delay tolerant networks. In this article, a new conception of node activity was defined to weigh the importance of nodes in aspect of message dissemination in the whole network. A new spray and wait protocol with node activity was proposed to improve the performance in heterogeneous delay tolerant networks. A mathematical model used under varieties of the spraying protocols was also proposed to analyze the expected delay of the protocol. Simulations show that the spray token proportion with node activity is optimal and the new protocol is of better performance than other related protocols. Therefore, this protocol has high efficiency and good scalability.

Key words: delay tolerant network (DTN), routing protocol, spray and wait, node activity, mathematical model