计算机应用 ›› 2014, Vol. 34 ›› Issue (1): 8-12.DOI: 10.11772/j.issn.1001-9081.2014.01.0008

• 网络与通信 • 上一篇    下一篇

基于无线传感器网络的分布式时分多址调度策略

刘韬1,2,陈毅红2,谭颖2,陈雅茜2   

  1. 1. 西南交通大学 信息科学与技术学院,成都 610031
    2. 西南民族大学 计算机科学与技术学院,成都 610041
  • 收稿日期:2013-07-25 修回日期:2013-09-16 出版日期:2014-01-01 发布日期:2014-02-14
  • 通讯作者: 刘韬
  • 作者简介:刘韬(1978-), 男,四川宣汉人,副教授,博士,CCF会员,主要研究方向:无线传感器网络;陈毅红(1973-),男,四川南充人,实验师,博士,主要研究方向:RFID、传感网; 谭颖(1974-),男,四川成都人, 副教授,博士,主要研究方向:智能信息处理;陈雅茜(1981-),女,四川雅安人, 讲师,博士, 主要研究方向:人机交互。
  • 基金资助:

    中国博士后基金资助项目;国家社会科学基金资助项目;西南民族大学中央高校基本科研业务费资助项目;西南民族大学教改项目

Distributed time division multiple access scheduling strategy for wireless sensor networks

LIU Tao1,2,CHEN Yihong1,TAN Ying1,CHEN Yaqian1   

  1. 1. School of Computer Science and Technology, Southwest University of Nationality, Chengdu Sichuan 610041, China;
    2. School of Information Science and Technology, Southwest Jiaotong University, Chengdu Sichuan 610031, China
  • Received:2013-07-25 Revised:2013-09-16 Online:2014-01-01 Published:2014-02-14
  • Contact: LIU Tao

摘要: 针对周期汇报型无线传感器网络(WSN)中数据量大而导致的无线信号冲突概率高的问题,提出了一种分布式的时分多址调度策略(DTSS)。该策略采用了一种分布式的竞争算法来构建节点的时隙调度表,即每个节点根据自身搜集到的信息来决定下一跳目的节点,并和其他节点竞争传输时隙。所有节点完成时隙调度表的建立后,节点在每个数据采集周期根据自己的工作时隙调度表发送和接收数据。仿真结果表明,该策略避免了节点无线信号的冲突,降低了节点能耗,延长了网络生命周期。

关键词: 无线传感器网络, 分布式, 调度算法, 数据采集, 周期汇报

Abstract: In a periodic report Wireless Sensor Network (WSN), heavy data traffic very easily leads to serious transmission collisions. This paper proposed a distributed Time Division Multiple Access (TDMA) scheduling strategy, called DTSS, to construct an appropriate transmission schedule that avoided transmission collisions. DTSS took advantage of a distributed competitive algorithm to build the transmission schedule. Each node selected its next-hop forwarding node and competed for a transmission time slot with its contending nodes. After the construction of the schedule, the nodes sent and received the data according to the schedule. The simulation results confirm DTSS avoids transmission collisions, decreases the energy consumption of nodes and significantly improves the network lifetime.

Key words: Wireless Sensor Network (WSN), distributed, scheduling algorithm, data gathering, periodic report

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