基于节点-时隙调度的WSN传输性能提升策略  

Transmission performance promotion strategy of wireless sensor network based on node-timestep scheduling

作　　者：赵小虎[1,2] 方祖浩 张凯 ZHAO Xiaohu;FANG Zuhao;ZHANG Kai(The National and Local Joint Engineering Laboratory of Internet Application Technology on Mine,Xuzhou 221008,Jiangsu China;School of Information and Control Engineering,China University of Mining and Technology,Xuzhou 221008,Jiangsu China)

机构地区：[1]中国矿业大学矿山物联网应用技术国家地方联合工程实验室,江苏徐州221008 [2]中国矿业大学信息与控制工程学院,江苏徐州221008

出　　处：《华中科技大学学报（自然科学版）》2021年第1期68-72,共5页Journal of Huazhong University of Science and Technology(Natural Science Edition)

基　　金：国家重点研发计划资助项目(2017YFC0804404)。

摘　　要：针对无线传感器网络在传输过程中存在的吞吐量不足、时延较大、能耗过高等服务质量(QoS)问题,将动态顶点染色算法进行改进并和差分进化算法结合,提出基于动态节点染色的时隙调度算法.在信息种群的传输过程中,依据节点信息的重要程度为节点划分优先级;通过顶点染色将优先级不同的节点标注,为不同优先级种群预留时隙;通过对节点-时隙的动态调度完成对网络性能的提升和优化.在Matlab平台上进行对比仿真试验,结果表明:和现有的方法相比,此方法能让网络的吞吐量最多提升44.5%,时延最多减少12.5%,能耗最多降低20.8%,有效提升了无线传感网络的传输性能.Aiming at the QoS(quality of service) problems of wireless sensor network during transmission process,such as insufficient throughput,large delay and excessive energy consumption,the dynamic vertex coloring algorithm was improved and combined with the differential evolution algorithm,and a time-slot scheduling algorithm based on dynamic node coloring was proposed.During the transmission of information population,the nodes were prioritized according to the importance of the node information;nodes with different priorities were marked by vertex coloring,and time slots were reserved for different priority populations;through dynamic scheduling of nodes-time-slot,the improvement and optimization of network performance were completed.Comparative simulation experiment on the Matlab platform was completed,and results show that compared with existing methods,the proposed method can increase the throughput of the network by up to 44.5%,reduce the delay by up to 12.5%,and reduce the energy consumption by up to 20.8%,improving the transmission performance of wireless sensor network effectively.

关 键 词：无线传感网络 传输调度 节点调度 时隙调度 服务质量 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]