计算机科学 ›› 2021, Vol. 48 ›› Issue (11A): 464-470.doi: 10.11896/jsjkx.201200026
官铮1, 吕伟1, 贾徭1, 杨志军1,2
GUAN Zheng1, LYU Wei1, JIA Yao1, YANG Zhi-jun1,2
摘要: 带内全双工(in-band full-duplex,IBFD) 无线通信允许节点在同一频段上同时进行发送和接收,是提高频谱利用率的有效途径。文中提出一种预约式两级调度全双工(Two-level Scheduled in-band Full-duplex,TSIB-FD)无线接入控制策略,将接入过程划分为信息收集、全双工数据传输和确认阶段,由AP在信息收集阶段感知节点业务及干扰关系生成一级调度方案,数据传输阶段AP根据一级调度方案建立全双工链路,并在数据传输过程中根据业务需求变化进行二次调度,完成数据传输后统一确认。仿真结果表明,文中提出的TSIBFD在确保延时的条件下提升了系统吞吐量,实验表明,最优情况下吞吐量相比Janus可提升38.5%,相比HBPOLL实现了1倍的增长。
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