计算机工程与应用 ›› 2007, Vol. 43 ›› Issue (35): 27-29.

• 博士论坛 • 上一篇    下一篇

无线多通道MAC协议McMAC的改进方案

邢志浩1,2,曾 鹏1,王 宏1   

  1. 1.中国科学院 沈阳自动化研究所,沈阳 110016
    2.中国科学院 研究生院,北京 100039
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2007-12-11 发布日期:2007-12-11
  • 通讯作者: 邢志浩

Improvement mechanism for wireless Multi-channel MAC protocol McMAC

XING Zhi-hao1,2,ZENG Peng1,WANG Hong1   

  1. 1.Shenyang Institute of Automation,Chinese Academy of Sciences,Shenyang 110016,China
    2.Graduate School of the Chinese Academy of Sciences,Beijing 100039,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2007-12-11 Published:2007-12-11
  • Contact: XING Zhi-hao

摘要: 无线多通道MAC协议McMAC采用了基于同步通道切换机制的MAC框架,具有良好的抗干扰能力和吞吐量性能。然而该协议中存在的节点“消失”现象会导致大量的无效发送,造成带宽和能量浪费。提出了一种适用于该协议的新型通道访问控制机制,不仅可有效解决McMAC协议中存在的无效发送问题,而且具有良好的节能效果。仿真结果表明新的通道访问控制机制能够大幅提高McMAC协议的网络吞吐量和能量效率。

关键词: 无线, 多通道, MAC协议, 通道访问控制

Abstract: The wireless multi-channel MAC protocol,McMAC,which adopts a MAC framework based on the synchronized channel hopping mechanism,has good anti-interference capability and throughput performance.Whereas the “node disappearing” phenomenon in this protocol results in a large amount of invalid transmissions,which is a great waste of bandwidth and energy.This paper proposes a new channel access control mechanism which is suitable for this protocol.It not only solves the invalid transmission problem in McMAC,but also has good energy-saving effect.Simulation results show that the new channel access control mechanism dramatically improves the throughput performance and the energy efficiency of the original McMAC protocol.

Key words: wireless, multi-channel, MAC protocol, channel access control