北京邮电大学学报

  • EI核心期刊

北京邮电大学学报 ›› 2013, Vol. 36 ›› Issue (6): 64-68.doi: 10.13190/j.jbupt.2013.06.014

• 论文 • 上一篇    下一篇

带有投递概率感知的低开销机会网络路由机制

吴大鹏, 刘佳, 王汝言   

  1. 重庆邮电大学 宽带泛在接入技术研究所, 重庆 400065
  • 收稿日期:2012-11-01 出版日期:2013-12-31 发布日期:2013-10-08
  • 作者简介:吴大鹏(1979—),男,副教授,E-mail:wudp@cqupt.edu.cn.
  • 基金资助:

    国家自然科学基金项目(61001105, 61371097)

Cost-Efficient Routing Mechanism with Delivery Probability Perception in Opportunistic Networks

WU Da-peng, LIU Jia, WANG Ru-yan   

  1. Broadband Ubiquitous Network Research Laboratory, Chongqing University of Posts and Telecommunications, Chongqing 400065, China
  • Received:2012-11-01 Online:2013-12-31 Published:2013-10-08

摘要:

中继节点的选择将直接影响机会网络的数据转发性能. 对此提出一种带有投递概率感知的低开销机会网络路由机制. 利用节点间的间接相遇时间间隔估计间接相遇概率,并结合直接相遇概率预测节点间的综合相遇概率,进而合理地选择中继节点,以极低开销的方式转发数据. 结果表明,在数据传输过程中,所提出机制的负载率平均降低了64.9%.

关键词: 机会网络, 间接相遇概率, 数据传输, 投递概率感知

Abstract:

The selection of relay node will directly affect the data forwarding performance of opportunity network. Therefore the cost-efficient routing mechanism with delivery probability perception (DPP-CERM) in opportunistic networks is proposed. The probability of comprehensive encounter between nodes by combining the probability of direct encounter and indirect encounter is estimated and evaluated by indirect inter-meeting time between nodes. The relay node reasonably and forward data with very lower cost were chosen thereafter. It is shown that DPP-CERM can reduce the average overhead ratio of data forwarding at least 64.9%.

Key words: opportunistic network, indirect encounter probability, data forwarding, delivery probability perception

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