摘要
为解决移动场景下现有定向MAC协议存在冗余单节点扇区时段分配、波束赋形训练开销过大以及用时过长等问题,提出了一种太赫兹无线个域网高时隙利用率快速定向MAC协议(High Slot Utilization Rate and FastDirectional MAC Protocol, HUFD-MAC)。HUFD-MAC协议采用冗余单节点扇区传输下行数据以及基于时间信息减少发送波束训练帧数量的机制,有效提高时隙利用率,减少网络开销,降低波束赋形用时。仿真结果表明,相比于IEEE 802. 15. 3c和ACAP-MAC协议, HUFD-MAC的网络开销降低约3. 23%, MAC层吞吐量提升约8. 50%。
In order to solve the problem of redundant time slot allocation for single node sectors, too large overhead and excessive-ly long time spent for beamforming training under mobile scenarios in existing directional MAC protocols, this paper proposes high slot utilization rate and fast directional MAC protocol( HUFD-MAC) for Terahertz wireless personal area networks. The HUFD-MAC protocol uses redundant single node sectors to transmit downlink data and reduces the number of transmitted beam training frames based on time information. This effectively improves the utilization of time slots, reduces network overhead, and decreases the time required for beamforming. The simulation results show that compared with the IEEE 802. 15. 3 c and ACAP-MAC protocols, the net-work overhead of HUFD-MAC is reduced by about 3. 23 %, and the MAC layer throughput is increased by about 8. 50 %.
作者
任智
徐兆坤
康健
Ren Zhi;Xu Zhaokun;Kang Jian(College of Communication and Information Engineering,Chongqing University of Posts and Telecommunications,Chongqing 400065,China)
出处
《电子技术应用》
2019年第3期55-58,62,共5页
Application of Electronic Technique
基金
国家自然科学基金项目(61379159)
重庆市基础与前沿研究计划项目(cstc2015jcyjBX0085)
