• 中国计算机学会会刊
  • 中国科技核心期刊
  • 中文核心期刊

J4 ›› 2007, Vol. 29 ›› Issue (1): 26-29.

• 论文 • 上一篇    下一篇

Ad Hoc网络中基于双向多信道预留的媒体接入算法

李虹 郑明春 李宁宁   

  • 出版日期:2007-01-01 发布日期:2010-05-30

  • Online:2007-01-01 Published:2010-05-30

摘要:

结合多信道和双向信道预留的策略,本文提出了一种新的应用于Ad Hoc网络的多信道媒体接入算法-NBMC算法,并对其吞吐量进行了性能分析。仿真实验结果表明,与IEEE802.11 DCF相比,NBMC算法使Ad Hoc网络上的TCP吞吐量和各TCP流信道占用的公平性都得到了有效的改善。

关键词: Ad Hoc网络 多信道 TCP性能 NS-2

Abstract:

A novel bidirectional multi-channel (NBMC) medium access algorithm is proposed for ad hoc networks in this paper.It integrates the multiple transmission channel scheme and the bidirectional RTS/CTS channel reservation algorithm.A theoretical analysis of the throughput and simulation results show tha t the TCP performance is improved obviously compared with the IEEE 802.11DCF protocol.

Key words: ad hoc network;multi-channel;TCP performance;NS-2