北京邮电大学学报

  • EI核心期刊

北京邮电大学学报 ›› 2015, Vol. 38 ›› Issue (4): 128-132.doi: 10.13190/j.jbupt.2015.04.025

• 研究报告 • 上一篇    下一篇

SaW-Utility:基于节点效用的DTN喷雾等待路由协议

王慧强, 朱金美, 冯光升, 吕宏武   

  1. 哈尔滨工程大学 计算机科学与技术学院, 哈尔滨 150001
  • 收稿日期:2014-08-09 出版日期:2015-08-28 发布日期:2015-06-26
  • 作者简介:王慧强(1960-),男,教授,博士生导师,E-mail:wanghuiqiang@hrbeu.edu.cn.
  • 基金资助:

    国家自然科学基金项目(61370212);博士点基金项目(20122304130002,20102304120012);黑龙江省自然科学重点基金项目(ZD201102);中央高校基本科研业务费专项项目(HEUCFZ1213,HEUCF100601)

SaW-Utility: a Spray and Wait Routing Protocol Based on the Utility of Nodes in DTN

WANG Hui-qiang, ZHU Jin-mei, FENG Guang-sheng, LÜ Hong-wu   

  1. College of Computer Science and Technology, University of Harbin Engineering, Harbin 150001, China
  • Received:2014-08-09 Online:2015-08-28 Published:2015-06-26

摘要:

针对延迟容忍网络(DTN)中喷雾等待(SaW)路由协议在转发消息时选择中继节点的盲目性,提出一种基于节点效用的路由协议SaW-Utility.此路由协议在转发消息时,将根据节点剩余缓存和节点交付概率等因素选择中继节点,从而减少中继节点选择的盲目性.仿真结果表明,相比于SaW路由协议,SaW-Utility路由协议明显提高了消息转发成功率,降低了网络开销.

关键词: 延迟容忍网络, 喷雾等待路由协议, 节点效用

Abstract:

Spray and wait (SaW) routing protocols select relay node arbitrarily in message forwarding process. Aiming at the arbitrariness, a new routing protocol, SaW-Utility, is proposed based on the utility of nodes. When messages are forwarded, SaW-Utility selects relay nodes according to the utility of nodes, such as the sizes of remaining buffer, success rate of message delivery, and etc., so that the arbitrariness can be overcome. The simulation results show that the proposed routing protocol significantly improves the success rate of message forwarding and reduces network overhead compared with SaW routing protocols.

Key words: delay tolerant network, spray and wait routing protocol, utility of node

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