计算机工程 ›› 2011, Vol. 37 ›› Issue (23): 107-109.doi: 10.3969/j.issn.1000-3428.2011.23.036

• 网络与通信 • 上一篇    下一篇

基于Chord算法的物联网信息查询机制

李占波1,邰金华2,刘冬冬1   

  1. (1. 郑州大学信息工程学院,郑州 450001;2. 华北水利水电学院机械学院,郑州 450011)
  • 收稿日期:2011-06-15 出版日期:2011-12-05 发布日期:2011-12-05
  • 作者简介:李占波(1965-),男,教授,主研方向:下一代互联网络技术,网络安全;邰金华,讲师;刘冬冬,硕士研究生
  • 基金项目:
    河南省科技攻关计划基金资助重大项目“现代物流信息综合管理平台关键技术的研究与应用”

Information Query Mechanism for Internet of Things Based on Chord Algorithm

LI Zhan-bo 1, TAI Jin-hua 2, LIU Dong-dong 1   

  1. (1. School of Information Engineering, Zhengzhou University, Zhengzhou 450001, China; 2. School of Mechanical, North China University of Water Conservancy and Electric Power, Zhengzhou 450011, China)
  • Received:2011-06-15 Online:2011-12-05 Published:2011-12-05

摘要: 针对物联网中现有物件名称服务查询机制的查询时延大、查找效率低等缺点,提出一种基于Chord算法的物联网信息查询机制。应用OMNET++网络平台进行仿真实验,结果表明,该机制在网络负载均衡、查询效率等方面有所改善,使网络时延由1.5 s左右降低到0~0.025 s之间,适用于地址空间急剧增长的物联网。

关键词: 物联网, 物件名称服务, 分布式哈希表, Chord算法, 查询效率

Abstract: Aiming at the search shortcoming and the low efficiency of Object Naming Service(ONS) for the Internet of things, this paper proposes an information query system, which is based on Distributed Hash Table(DHT) networking search technology——Chord algorithm. Simulation experiments by OMNET++ network simulation platform prove that the network load balance and inquiry efficiency are improved. It makes the network delay reduced from 1.5 s to 0.025 s, which is suitable for the Internet of things.

Key words: Internet of things, Object Naming Service(ONS), Distributed Hash Table(DHT), Chord algorithm, query efficiency

中图分类号: