一种面向唤醒无线电WSNs的接入控制协议  

A medium access control protocol for Wireless Sensor Networks of wake-up radio

作　　者：臧景才 ZANG Jingcai(School of Continuing Education,Qinghai Radio and TV University,Xining 810000,China)

机构地区：[1]青海广播电视大学继续教育学院,青海西宁810000

出　　处：《青海大学学报》2021年第3期74-79,共6页Journal of Qinghai University

基　　金：青海省科学技术厅科技成果转化专项(2017-SF-132)。

摘　　要：针对唤醒无线电(WuR)的无线传感网络(WSNs)中接入控制协议的能量消耗及时延问题,提出基于接收节点触发唤醒无线电的连续数据包传输的接入控制协议(CPT-MAC)。CPT-MAC协议将竞争类MAC和TDMA-MAC协议相结合,对CSMA/CA机制竞争信道进行了研究。结果表明:(1)在接收节点触发的唤醒无线电中,接收节点通过传输唤醒呼叫无线电。(2) CPT-MAC协议通过降低节点接入媒体可能产生的竞争概率,降低节点能耗。仿真结果表明,相比传统的接收器初始化(RI) WuR协议(RI-WuR),CPT-MAC协议在能量效率、传输时延、网络寿命和数据传输可靠率3方面的性能得到提升。A medium access control protocol(CPT-MAC)based on the consecutive packet transmission of wake-up radio triggered by receiving node is proposed in this paper aiming at the problem of energy consumption and delay of medium access control protocol in Wireless Sensor Networks(WSNs)of wake-up radio(WuR).Competition protocols MAC and TDMA-MAC are combined by CPT-MAC protocol,and competition channel is studied by CSMA/CA mechanism.The results show that:(1)The radio is aroused by the receiving node through transmission in the wake-up radio triggered by the receiving node.(2)CPT-MAC protocol reduces the energy consumption of nodes by reducing the probability of contention that may occur when nodes access media.According to the simulation results,the performance of CPT-MAC protocol proposed in this paper is improved in terms of energy efficiency,transmission delay,network lifetime and data transmission reliability compared with the traditional receiver initialization(RI)WuR protocol(RI-WuR).

关 键 词：无线传感网络 唤醒无线电 接入控制协议 连续数据包传输 

分 类 号：TN929.5[电子电信—通信与信息系统] TP393.04[电子电信—信息与通信工程]