计算机科学 ›› 2018, Vol. 45 ›› Issue (6): 84-88.doi: 10.11896/j.issn.1002-137X.2018.06.014

• 网络与通信 • 上一篇    下一篇

一种采用时隙对准方式的TDMA自组网同步协议

金瑞, 刘作学   

  1. 装备学院 北京101400
  • 收稿日期:2017-05-01 出版日期:2018-06-15 发布日期:2018-07-24
  • 作者简介:金 瑞(1993-),男,硕士生,主要研究方向为无线自组网MAC层协议,E-mail:394744537@qq.com;刘作学(1962-),男,硕士,教授,主要研究方向为无线军事信息处理,E-mail:lzx626@sohu.com(通信作者)

Synchronization Protocol of TDMA Ad hoc Network Based on Time Slot Alignment

JIN Rui, LIU Zuo-xue   

  1. Academy of Equipment,Beijing 101400,China
  • Received:2017-05-01 Online:2018-06-15 Published:2018-07-24

摘要: 通过对TDMA方式下的同步协议STS和TISS进行研究,提出一种基于时隙对准方式的TDMA自组网同步协议MFSS。该协议以工作周期为自组网节点之间同步的标准,在节点初入网时采用双向交互和时隙对准方法,消除了传输时延误差和初始时间偏差,从而实现了快速初始同步;随后通过监测过程保证了节点之间产生的时钟漂移误差可自适应控制,同时减小了重新同步带来的开销。仿真结果证明,相比于STS协议和TISS协议,MFSS协议在同步收敛速度、同步精度以及同步开销上都取得了更好的性能。

关键词: 工作周期, 监测过程, 时间同步, 时钟漂移误差

Abstract: Through researching the TDMA time synchronization protocols STS and TISS,this paper proposed a TDMA Ad hoc network synchronization protocol MFSS based on time slot alignment.The MFSS protocol uses the work cycle as the standard of synchronization among the nodes of Ad hoc network.When the node accesses the network firstly,the two-way interaction and time slot alignment are used to eliminate the transmission delay error and initial time deviation,so an initial synchronization can be completed quickly.Then,the clock drift error among nodes can be controled by the monitoring process,and the overhead of resynchronization is also reduced.The simulation results show that compared with STS protocol and TISS protocol,the MFSS protocol achieves better performance in terms of synchronous convergence speed,synchronization accuracy and synchronization overhead.

Key words: Clock drift error, Monitoring process, Time synchronization, Work cycle

中图分类号: 

  • TN929
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