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一种应用于WLAN的混合双工MAC协议

吴皓威 邹玉涛 孙晨 欧静兰

吴皓威, 邹玉涛, 孙晨, 欧静兰. 一种应用于WLAN的混合双工MAC协议[J]. 电子与信息学报, 2017, 39(4): 840-846. doi: 10.11999/JEIT160539
引用本文: 吴皓威, 邹玉涛, 孙晨, 欧静兰. 一种应用于WLAN的混合双工MAC协议[J]. 电子与信息学报, 2017, 39(4): 840-846. doi: 10.11999/JEIT160539
WU Haowei, ZOU Yutao, SUN Chen, OU Jinglan②. A Hybrid-duplex MAC Protocol for WLAN[J]. Journal of Electronics & Information Technology, 2017, 39(4): 840-846. doi: 10.11999/JEIT160539
Citation: WU Haowei, ZOU Yutao, SUN Chen, OU Jinglan②. A Hybrid-duplex MAC Protocol for WLAN[J]. Journal of Electronics & Information Technology, 2017, 39(4): 840-846. doi: 10.11999/JEIT160539

一种应用于WLAN的混合双工MAC协议

doi: 10.11999/JEIT160539
基金项目: 

国家高技术研究发展计划(2015AA7072014C),重庆市院士基金项目(cstc2014yykfys90001)

A Hybrid-duplex MAC Protocol for WLAN

Funds: 

The National High-tech RD Program (2015AA7072014C), The Chongqing Academician Fund Project (cstc2014yykfys90001)

  • 摘要: 全双工通信技术可以提高链路容量和频谱利用率,会给现有无线局域网(WLAN)带来极大的变革。该文针对传统半双工WLAN向全双工WLAN发展的过程中多种双工站点共存的问题,提出一种混合双工媒体接入控制(MAC)协议(HYD-MAC)。该协议合理设计了请求发送/清除发送(RTS/CTS)帧,并根据网络隐藏节点状况和站点全双工能力,自适应地选择最佳的传输模式,包括同步全双工、异步全双工、条件半双工以及半双工等4种模式。给出了HYD-MAC协议在4种传输模式下的链路建立与数据传输流程,分析了HYD-MAC的饱和吞吐量和介质访问时延等网络性能。仿真结果表明,所提的HYD-MAC的性能优于传统半双工DCF协议,特别在帧长较长、站点数较少、数据传输速率较低时,HYD-MAC的性能提升效果更加明显;与经典的全双工协议相比,HYD-MAC协议通过牺牲极少的吞吐量和时延性能,可以同时满足全双工、半双工以及混合双工网络的通信需求。
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出版历程
  • 收稿日期:  2016-05-26
  • 修回日期:  2016-09-23
  • 刊出日期:  2017-04-19

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