吕昱辉1,,,
徐兆坤1,
邹明芮2,
田洁丽1
1.重庆邮电大学移动通信技术重庆市重点实验室 ??重庆 400065
2.中国工程物理研究院激光聚变研究中心 ??成都 610000
基金项目:国家自然科学基金(61379159),重庆市基础与前沿研究计划项目(cstc2015jcyjBX0085)
详细信息
作者简介:任智:男,1971年生,教授,博士生导师,研究方向为太赫兹无线个域网和机会网络
吕昱辉:男,1993年生,硕士生,研究方向为太赫兹无线个域网定向MAC协议
徐兆坤:男,1993年生,硕士生,研究方向为太赫兹无线个域网定向并行MAC协议
邹明芮:女,1986年生,助理研究员,博士,研究方向为太赫兹无线网络MAC层协议
田洁丽:女,1992年生,硕士生,研究方向为太赫兹无线个域网跨PAN数据传输
通讯作者:吕昱辉 lvyuhui_cqupt@126.com
中图分类号:TP393.04计量
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被引次数:0
出版历程
收稿日期:2018-04-02
修回日期:2018-08-16
网络出版日期:2018-09-12
刊出日期:2019-01-01
An Adaptive Directional MAC Protocol for Terahertz Wireless Personal Networks
Zhi REN1,Yuhui Lü1,,,
Zhaokun XU1,
Mingrui ZOU2,
Jieli TIAN1
1. Chongqing Key Laboratory of Mobile Communication Technology, Chongqing University of Post & Telecommunications, Chongqing 400065, China
2. Research Center of Laser Fusion, Chinese Academy of Engineering Physics, Chengdu 610000, China
Funds:The National Natural Science Foundation of China (61379159), The Chongqing Basic and Frontier Research Project (cstc2015jcyjBX0085)
摘要
摘要:针对现有太赫兹无线个域网定向MAC协议存在的波束训练开销和入网时延偏大以及Beacon, S-CAP时段时隙利用不足问题,该文提出一种自适应的定向MAC协议——AD-MAC,自适应地在静态场景下采用全网协同波束训练,在动态场景下节点基于历史信息快速回复波束训练帧,同时使用反向监听策略减小同扇区节点的帧碰撞概率,并且通过时隙复用在Beacon和S-CAP时段并行发送控制帧和数据帧。理论分析表明了AD-MAC协议的有效性,仿真结果显示:相较于ENLBT-MAC等典型协议,AD-MAC在静态场景下的波束训练开销和节点平均入网时延分别降低了约21.84%和22.70%,在动态场景下上述二指标则分别减小了约18.7%和13.07%。
关键词:无线个域网/
太赫兹/
MAC协议/
定向
Abstract:To reduce the beamforming training cost and network delay, make the best of Beacon and S-CAP sub-period in the existing Terahertz Wireless Personal Access Network (TWPAN) directional MAC protocols, an Adaptive Directional MAC (AD-MAC) protocol for TWPAN is proposed. AD-MAC adaptively uses the entire network cooperative beam training in a static scenario, and makes network nodes quickly respond to beam training frames based on historical information in a dynamic scenario. The reverse listening strategy is used to reduce the collision probability of same sector nodes. The control frame and data frame are transmitted simultaneously in the Beacon and S-CAP slot using time-slot reuse. Theoretical analysis verifies the effectiveness of AD-MAC. Also, simulation results show that, comparing with ENLBT-MAC, AD-MAC reduces about 21.84% of beamforming training cost and 22.70% of the average network delay in static scene, and reduces about 18.7% of beamforming training cost and 13.07% of the average network delay in dynamic scene.
Key words:Wireless personal access networks/
Terahertz/
MAC protocols/
Orientation
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