摘要
由于无线传感器网络中节点的能量有限,从无线传感器网络节能的角度出发,基于离散时间的完全服务轮询控制系统,提出了分忙闲并行调度完全服务轮询控制系统.系统根据站点所处的不同状态只对有信息分组的忙站点进行发送服务,该模型能避免对空闲站点的无谓查询,提高系统能量利用率,降低系统的等待时延.采用概率母函数和嵌入式马尔科夫链的方法建立了系统的数学模型,并精确解析了系统的平均排队队长与平均等待时延重要性能参数.模拟仿真结果表明了理论分析和仿真实验的一致性,与普通完全服务轮询控制系统相比,系统性能显著提高.
Due to the limited energy of nodes in wireless sensor networks,the article starts from the perspective of energy saving in wireless sensor networks,based on the discrete-time full-service polling control system,a busy-idle parallel scheduling full service polling control system is proposed.The system only sends services to busy sites that have information groups according to the different status of the site,so this model can avoid unnecessary queries to idle sites,and improve system energy utilization,and reduce system latency.The mathematical model of the system is established by using the probabilistic mother function and the embedded Markov chain method,and the average performance parameters of the average queue length and the average waiting delay of the system are accurately analyzed.The simulation results show the consistency between the theoretical analysis and the simulation experiment.Compared with the ordinary full service polling control system,the system performance is greatly improved.
作者
孙洋洋
杨志军
SUN Yang-yang;YANG Zhi-jun(School of Information,Yunnan University,Kunming 650500,Chin)
出处
《云南师范大学学报（自然科学版）》
2018年第4期31-35,共5页
Journal of Yunnan Normal University:Natural Sciences Edition
基金
国家自然科学基金资助项目(61461054
61461053)
关键词
分忙闲
并行
完全服务
轮询系统
Distinguish busy idle
Parallel
Full service
Polling system
