混合型分簇MAC协议在无线传感器网络中的实现  

Implementation of hybrid clustering MAC protocol in wireless sensor networks

作　　者：董发志 熊成彪 丁洪伟[1] 张颖婕 杨俊东[1] DONG Fazhi;XIONG Chengbiao;DING Hongwei;ZHANG Yingjie;YANG Jundong(School of Information Science and Engineering,Yunnan University,Kunming 650500,China)

机构地区：[1]云南大学信息学院

出　　处：《现代电子技术》2020年第1期1-4,共4页Modern Electronics Technique

基　　金：国家自然科学基金资助项目（61461053）;国家自然科学基金资助项目（61461054）;国家自然科学基金资助项目（61072079）;云南省自然科学基金资助项目（2010CD023）;云南大学基金资助项目（XT412004）

摘　　要：针对当前MAC协议的研究大多停留在软件仿真阶段的问题,设计一种适用于两层无线传感器网络的混合型MAC协议,并利用节点实现硬件仿真。簇内采用门限服务方式,各节点接到唤醒通知后,依据簇头发布的轮询列表,按照顺序发送数据,实现无冲突通信。簇间采用随机多址接入,各簇头随机争用信道,向汇聚节点发送数据。基于Z-Stack进行协议设计,最后利用CC2530节点搭建无线传感器网络,实现该协议。实验结果表明,使用该协议的系统能够正确运行,吞吐量和平均时延、平均排队队长的实验值与理论值一致。In order to solve the problem that the MAC protocol research still mostly remains in the stage of software simulation,a hybrid MAC protocol suitable for two⁃layer wireless sensor networks was designed,and hardware simulation was realized by means of nodes.The threshold service mode is adopted within the cluster.After receiving the wake⁃up notification,each node sends data in sequence according to the polling list issued by the cluster head in order to realize collision⁃free communication.Random multiple accesses are adopted among clusters,and each cluster head randomly contends for a channel to send data to the sink node.The protocol is designed based on Z⁃Stack,and the wireless sensor network is built by CC2530 node to realize the protocol finally.The experimental results show that the system using this protocol can operate correctly,and the experimental values of throughput,average delay and average queue length are in line with the theoretical values.

关 键 词：无线传感器网络 MAC协议设计 随机多址接入 门限服务 轮询服务 硬件仿真 

分 类 号：TN915.04-34[电子电信—通信与信息系统] TP393[电子电信—信息与通信工程]