降低控制开销的太赫兹无线个域网双信道MAC协议  

Dual-channel MAC Protocol for Terahertz Wireless Personal Area Networks with Lower Control Overhead

作　　者：周逊[1,2] 霍兵 任智[1] ZHOU Xun;HUO Bing;REN Zhi(Chongqing Key Laboratory of Mobile Communication Technology,Chongqing University of Posts and Telecommunications,Chongqing 400065,China;Laser Fusion Research Center,China Academy of Engineering Physics,Mianyang 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：《小型微型计算机系统》2023年第1期163-167,共5页Journal of Chinese Computer Systems

基　　金：国家自然科学基金项目(61971080)资助。

摘　　要：针对现有的太赫兹无线个域网双信道媒体访问控制(Medium Access Control, MAC)协议在节点需要双向通信时采用半双工通信方式和对于已通信过的节点再次通信且位置未发生改变时信息控制开销较大而影响网络性能的问题,提出一种低控制开销的太赫兹无线个域网双信道MAC协议(Low Control Overhead dual-channel MAC protocol, LCO-MAC).LCO-MAC协议通过在通信双方节点同时有向对方发送数据的需求时,采用点对点全双工通信机制通过一次信息控制帧的交互完成信道预约和自适应省略允许发送帧/测试帧机制,降低信息交互过程的控制开销,提高吞吐量来提升网络性能.仿真结果表明,与TAB-MAC协议和EF-MAC协议相比,本文所提出的协议信息控制开销降低了至少12.6%、网络吞吐量和信道利用率提升分别不少于11.3%和12%.In view of the existing dual-channel MAC protocol of terahertz wireless personal area networks communication, the half-duplex communication mechanism is used when the two nodes need to send data to each other and re-communication for the nodes that have already communicated and the location is not changed, that increases the information control overhead, and affects the network performance.A low control overhead dual-channel MAC protocol is proposed for terahertz wireless personal area network.The LCO-MAC protocol uses a point-to-point full-duplex communication mechanism to complete channel reservation through an information control frame interaction when the two nodes in communication need to send data to each other and self-adaptive omission of the allowable sending frame/test frame mechanism, reducing information control overhead of the interactive process and improving the throughput to improve the network performance.The simulation results show that compared with the TAB-MAC protocol and the EF-MAC protocol, the protocol information control overhead proposed in this paper reduces at least 12.6%,and the network throughput and channel utilization increases no less than 11.3% and 12%,respectively.

关 键 词：太赫兹 无线个域网 媒体访问控制协议 双信道 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]