基于最大传输机会的无线网格网络拥塞缓解策略  

An Congestion Mitigation Scheme Based on TXOP in WMN

作　　者：李帅[1] 曾晓丽[1] 胡伟[1] 

机构地区：[1]成都信息工程学院网络工程学院,四川成都610225

出　　处：《成都信息工程学院学报》2012年第2期142-146,共5页Journal of Chengdu University of Information Technology

摘　　要：在无线网格网下提出一种通过提高发生拥塞的业务最大传输机会以缓解拥塞状况的拥塞策略,依据发送队列状态调整最大传输机会,增加拥塞节点中的拥塞业务的传输机会。对仿真数据分析结果表明网格网络的吞吐率、丢包率等重要网络性能都有明显改善,策略与IEEE802.11s草案中的拥塞机制相比,能够有效缓解网络拥塞,提高网络性能。This paper proposed a new congestion control approach by increasing the transmit opportunity of the con- gest access category to release the congestion status. This approach adjust the transmit opportunity based on the sta- tus of the corresponding access category＇s transmit queue. Analysis of the simulation data in Network simulator shows better performances in many network factors such as throughput, packet loss rate, etc. The result proves that this approach can relieve network congestion and improve network performance effectively compared with the other congestion control mechanisms in IEEE802.11s draft.

关 键 词：无线通信 无线网格网 IEEE802.11s 拥塞控制 最大传输机会 

分 类 号：TN926.3[电子电信—通信与信息系统]