北京邮电大学学报

  • EI核心期刊

北京邮电大学学报 ›› 2005, Vol. 28 ›› Issue (5): 30-33.doi: 10.13190/jbupt.200505.30.wukj

• 论文 • 上一篇    下一篇

Ad Hoc网络媒体接入控制中一种新的退避算法

吴克军1,苏兆龙2,于全3   

  1. 1解放军理工大学 通信工程学院, 南京 210007; 2解放军理工大学 理学院, 南京 210007; 〖JZ〗3总参第六十一研究所, 北京 100039
  • 出版日期:2005-10-28 发布日期:2005-10-28

A Novel Backoff Algorithm for Media Access Control in Ad Hoc Network

WU Kejun1,SU Zhaolong2,YU Quan3   

  1. 1 Institute of Communication Engineering, People's Liberation Army University of Science and Technology, Nanjing 210007, China; 2 Institute of Science, People's Liberation Army University of Science and Technology, Nanjing 210007, China;3 The 61st Research Institute of General Staff Headquarters, People's Liberation Army, Beijing 100039, China
  • Online:2005-10-28 Published:2005-10-28

摘要:

为提高战术Ad Hoc网络中领导者节点的报文发送成功率,提出了新的用于媒体接入控制的退避算法. 该算法采用不同于传统的退避间隔设置方法,当领导者节点报文发送成功时,退避间隔设为最大值;报文发送失败时,随着报文重传次数增加,逐渐减小退避间隔,实现报文的重传. 同时还从理论上分析了算法的性能. 计算机仿真表明,其有效提高了网络中领导者节点的报文发送成功率,且对网络中普通节点的报文发送成功率影响很小.

关键词: 战术互联网, Ad Hoc网络, 媒体接入控制, 退避算法, 退避间隔

Abstract:

To improve the success probability of transmitted packets of leader nodes in tactics Ad Hoc network, a novel backoff algorithm was proposed, which was different from general methods of setting backoff intervals. When the leader succeeded to send a packet, the backoff interval was set as the maximum value. After failing to send a packet, the backoff interval was gradually shortened when times of retransmission increased. Then its performance was theoretically analyzed. Computer simulation shows that the success probability of packets of leader nodes which are transmitted is greatly improved and little effect is given to the success probability of packets of common nodes.

Key words: tactics Internet, Ad Hoc network, media access control, backoff algorithm, backoff interval

中图分类号: