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计算机工程 ›› 2011, Vol. 37 ›› Issue (7): 1-3. doi: 10.3969/j.issn.1000-3428.2011.07.001

• 博士论文 •    下一篇

机会网络中无线链路统计特性的研究

刘期烈1,2,祝孟伟1,黄 巍3,唐丽均2,李 云1,潘英俊2   

  1. (1. 重庆邮电大学移动通信重点实验室,重庆 400065;2. 重庆大学光电技术及系统教育部重点实验室,重庆 400044; 3. 中国电子科技集团公司第十研究所,成都 610036)
  • 出版日期:2011-04-05 发布日期:2011-03-31
  • 作者简介:刘期烈(1974-),男,讲师、博士研究生,主研方向:无线通信网络;祝孟伟,硕士研究生;黄 巍,高级工程师、博士;唐丽均,博士研究生;李 云,教授、博士;潘英俊,教授、博士、博士生导师
  • 基金资助:
    国家自然科学基金资助项目(61071118);重庆市自然科 学基金资助项目(CSTC2009BB2279);重庆邮电大学基金资助项目(A2009-28)

Research of Wireless Link Statistical Characteristics in Opportunistic Network

LIU Qi-lie  1,2, ZHU Meng-wei 1, HUANG Wei  3, TANG Li-jun  2, LI Yun  1, PANG Ying-jun  2   

  1. (1. Key Lab of Mobile Communication Technology, Chongqing University of Posts and Telecommunications, Chongqing 400065, China; 2. Key Lab of OptoElectronics Technology and System of Ministry of Education, Chongqing University, Chongqing 400044, China; 3. The 10th Institute of China Electronics Technology Group Corporation, Chengdu 610036, China)
  • Online:2011-04-05 Published:2011-03-31

摘要: 无线链路特性是影响机会网络性能的重要参数。为此,通过数据统计分析及数值计算,从节点间的持续连接时间特性出发,分析现实环境中机会网络的链路统计特性。利用曲线拟合得到节点间持续连接时间的分布函数及变化规律,并通过Matlab对其进行仿真。结果表明,机会网络中无线链路的持续连接时间的分布函数服从指数分布。

关键词: 机会网络, 链路特性, 持续连接时间, 曲线拟合, 指数分布

Abstract: The wireless link characteristic has an important influence on the performance of the opportunistic network. So it is necessary to study the characteristics of wireless link of the opportunistic network. In this paper, according to statistical analysis and numerical methods, the link statistical characteristic in the real opportunities network is analyzed from the contact times of the nodes. The distribution function and the rules with changes of the contact duration of the nodes are gotten through the curve fitting, and are simulated through Matlab. Results show that the probability distribution of the contact duration of wireless link is as the law of exponential distribution.

Key words: opportunistic network, link characteristic, contact duration, curve fitting, exponential distribution

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