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个人信息Personal Information
教授
博士生导师
硕士生导师
主要任职：Dean of School of Software
性别：男
毕业院校：哈尔滨工程大学
学位：博士
所在单位：软件学院、国际信息与软件学院
学科：软件工程. 计算机应用技术
联系方式：wgwdut@dlut.edu.cn
电子邮箱：wgwdut@dlut.edu.cn
A Packet Buffer Evaluation Method Exploiting Queueing Theory for Wireless Sensor Networks
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论文类型：期刊论文
发表时间：2011-10-01
发表刊物：COMPUTER SCIENCE AND INFORMATION SYSTEMS
收录刊物：SCIE
卷号：8
期号：4,SI
页面范围：1027-1049
ISSN号：1820-0214
关键字：wireless sensor networks; queueing network model; blocking; packet buffer capacity; node utilization
摘要：In large-scale wireless sensor networks (WSNs), when the consumption of hardware is limited, how to maximize the performance has become the research focus for improving transmission quality of service (QoS) of WSNs in recent years. This paper presents a new evaluation method for packet buffer capacity of nodes using queueing network model, whose packet buffer capacity is analyzed for each type node, when it is in the best working condition. In order to evaluate congestion situation in the queueing network, and to get real effective arrival rates and transmission rates in the model, holding nodes were added in the queueing network model, and equivalent queueing network model is expanded. We establish an M/M/1/N type queueing network model with holding nodes for WSNs and design approximate iterative algorithms. Experimental results show that the model is consistent with the real data.