高效快速的太赫兹无线个域网双信道MAC协议  

Efficient and fast dual-channel MAC protocol for terahertz wireless personal area networks

作　　者：周逊[1,2] 周海东 任智[1] 邹明芮 李光彬[2] ZHOU Xun;ZHOU Haidong;REN Zhi;ZOU Mingmi;LI Guangbin(Chongqing Key Laboratory of Mobile Communications Technology,Chongqing University of Posts and Telecommunications,Chongqing 400065,China;Laser Fusion Research Center,China Academy of Engineering Physics,Mianyang Sichuan 621900,China)

机构地区：[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,四川绵阳621900

出　　处：《计算机应用》2018年第5期1436-1441,共6页journal of Computer Applications

基　　金：国家自然科学基金资助项目(61379159);重庆市基础与前沿研究计划项目(cstc2015jcyj BX0085)~~

摘　　要：针对现有的太赫兹无线个域网络中太赫兹辅助波束赋形媒体访问控制(MAC)协议(TAB-MAC)存在数据传输时延较大以及信道利用率低问题,提出了一种高效快速的太赫兹无线个域网双信道MAC协议(EF-MAC)。通过目的节点向源节点发送测试帧机制来减少一个确认帧,从而减少控制开销和测试时延;采用自适应取消节点位置信息的收发机制,源或目的节点通过之前的请求发送帧/允许发送帧(RTS/CTS)帧交互过程已获得对方节点的位置信息且对方节点的位置没有发生改变,可以省去RTS或CTS中的位置信息,减少控制开销。理论分析与仿真结果表明,与TAB-MAC协议相比,所提协议能够有效减小数据传输时延,提高网络吞吐量。To address the problems that data transmission delay is high and the channel utilization rate is low in the TABMAC（ Assisted Beamforming MAC（ Medium Access Control） protocol for terahertz communication network） for present terahertz Wireless Personal Area Network（ T-WPAN）, an Efficient and Fast dual-channel MAC protocol for T-WPAN（ EFMAC） was proposed. A test frame was sent to the source node through destination node to reduce an acknowledgment frame,so as to reduce control overhead and test delay. And then a sending and receiving mechanism of node location information was adaptively concelled, the source or destination node obtained the location information of the other node through interaction process previously of RTS/CTS（ Request To Send/Clear To Send） frame, and the position of other node had not changed, thus the location information of RTS or CTS frame could be omitted to reduce control overhead. The theoretical analysis and simulation results show that compared with TAB-MAC protocol, the proposed protocol can effectively reduce data transmission delay and improve network throughput.

关 键 词：太赫兹 双信道 媒体访问控制协议 

分 类 号：TP393.04[自动化与计算机技术—计算机应用技术]