北京邮电大学学报

  • EI核心期刊

北京邮电大学学报 ›› 2016, Vol. 39 ›› Issue (1): 41-46.doi: 10.13190/j.jbupt.2016.01.007

• 论文 • 上一篇    下一篇

多信道占空比感知的无线传感网低延迟广播

焦贤龙1,2, 肖卫东2, 葛斌2, 王晓东3, 陈宇莉4   

  1. 1. 空军工程大学信息与导航学院, 西安 710077;
    2. 国防科技大学信息系统与管理学院, 长沙 410073;
    3. 国防科技大学并行与分布处理重点实验室, 长沙 410073;
    4. 重庆市观音桥小学, 重庆 400020
  • 收稿日期:2015-05-27 出版日期:2016-02-28 发布日期:2015-12-08
  • 作者简介:焦贤龙(1982-),男,讲师,博士,E-mail:xljiao@nudt.edu.cn.
  • 基金资助:

    国家自然科学基金项目(61402510,61472434,61202487);湖南省自然科学基金项目(14JJ3006);中国博士后科学基金项目(2014M552686)

Delay Efficient Broadcast for Multi-Channel Duty-Cycled Wireless Serisor Networks

JIAO Xian-long1,2, XIAO Wei-dong2, GE Bin2, WANG Xiao-dong3, CHEN Yu-li4   

  1. 1. Information and Navigation College, Air Force Engineering University, Xi'an 710077, China;
    2. College of Information System and Management, National University of Defense Technology, Changsha 410073, China;
    3. Science and Technology on Parallel and Distributed Processing Laboratory, National University of Defense Technology, Changsha 410073, China;
    4. Chongqing Guanyinqiao Elementary School, Chongqing 400020, China
  • Received:2015-05-27 Online:2016-02-28 Published:2015-12-08

摘要:

针对多信道占空比感知无线传感网,证明了最低延迟广播问题是NP难问题,提出了两种新的概念:候选活跃冲突图和可行活跃冲突图,并在两种新概念的基础上提出了一种低延迟的广播算法——高效广播算法,理论分析证明该算法具有较小的近似比.仿真实验结果表明,与现有算法相比,高效广播算法能够有效降低广播延迟.

关键词: 多信道, 占空比, 无线传感网, 广播算法

Abstract:

For multi-channel duty-cycled wireless sensor networks, the minimum delay broadcast problem was proved to be NP-hard. Two new concepts of candidate active conflict graph and feasible active conflict graph were presented. A Low delay broadcast algorithm called efficient broadcast algorithm was proposed based on these two new concepts. Analysis shows that this algorithm has a small approximation ratio. Simulation shows at the same time that efficient broadcast algorithm improves the broadcast delay efficiently compared with the existing work.

Key words: multi-channel, duty cycle, wireless sensor networks, broadcast algorithm

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