计算机应用 ›› 2013, Vol. 33 ›› Issue (10): 2726-2729.

• 网络与通信 • 上一篇    下一篇

随机接入移动无线传感器网络快速组网媒体访问控制

黄亮,王福豹,马超,杨晗   

  1. 西北工业大学 电子信息学院, 西安 710072
  • 收稿日期:2013-04-10 修回日期:2013-05-30 出版日期:2013-10-01 发布日期:2013-11-01
  • 通讯作者: 黄亮
  • 作者简介:黄亮(1985-),男,湖北孝感人,博士研究生,主要研究方向:无线自组网、无线传感器网络;王福豹(1963-),男,山西运城人,教授,博士生导师,CCF会员,主要研究方向:计算机网络、无线通信网络;马超(1978-),男,宁夏中卫人,博士研究生,主要研究方向:无线传感器网络;杨晗(1988-),男,河南南阳人,硕士研究生,主要研究方向:无线传感器网络路由协议。

Fast networking media access control for random access based mobile wireless sensor networks

HUANG Liang,WANG Fuyue,MA Chao,YANG Han   

  1. School of Electronics and Information, Northwestern Polytechnical University, Xi’an Shaanxi 710072, China
  • Received:2013-04-10 Revised:2013-05-30 Online:2013-11-01 Published:2013-10-01
  • Contact: HUANG Liang

摘要: 基于非时隙CSMA/CA随机接入机制的IEEE802.15.4MAC协议组网耗时过长,不能满足自组网实时通信应用需求。针对这一问题,分析了MAC组网流程中各步骤所耗时间,提出一种新的快速组网策略,采用预分配信道,将关联过程从间接传输简化为直接传输,改进CSMA/CA冲突避免机制以减少冲突。仿真实验和现场测试结果均表明,与IEEE 802.15.4协议相比,提出的快速组网策略使得信道冲突降低,组网时间更快,更符合实时通信需求。

关键词: 移动无线传感器网络, 快速组网, IEEE802.15.4MAC, 非时隙CSMA/CA, 组网时间

Abstract: This paper researched the fast networking Media Access Control (MAC) of mobile sensor networks based on unslotted CSMA/CA (Carrier Sense Multiple Access with Collision Avoidance) random access algorithm. This paper analyzed and optimized the networking process by preassigning the channels, simplified the association process using direct transmission instead of indirect transmission, and improved the CSMA/CA mechanism in order to reduce the collision. The simulation and field test results show that the proposed method can reduce the collision and the networking time effectively compared with the IEEE 802.15.4 protocol.

Key words: Mobile Wireless Sensor Network (MWSN), fast networking, IEEE802.15.4MAC, unslotted CSMA/CA (Carrier Sense Multiple Access with Collision Avoidance), networking time

中图分类号: