摘要
针对目前无线传感器网络实验床普遍缺乏性能测量机制的问题,基于TinyOS的特点,提出了一种支持对实验对象进行现场测量的实验床体系结构。将轻量级测量实体嵌入到实验床中,对被测系统、测量指标进行约束与定义,设计了高能效的测量方法和测量算法,实现了对实验中节点能耗、链路质量、吞吐量、丢包率、时延、网络拓扑等性能参数的高效可靠获取,解决了传感器网络协议或应用的实时测试问题。该实验床技术支持分布式多点测量和平面、分簇、Multi-Sink等多种网络结构,提高了实验床设施的利用率和实验效率。实验案例证明了其良好的易用性、普适性和可扩展性。
To solve the problems in real-time evaluation and deep analysis of wireless sensor network （WSN） applications, a novel Mote and TinyOS based WSN testbed architecture characterized by supporting distributed in-situ performance measurement of experimental objects was proposed. The system under test and the measurement metrics were defined and a set of high energy-efficient measurement algorithms were implemented. The lightweight measurement entity built in the testbed during experiments enables the reliably acquirement of node energy consmnption, link quality, throughput, packet loss rate, delay and network topology without bringing extra load traffic upon radio. The testbed technology provides fiat, cluster, segmented, mesh, multi-sink network structure adaption, so enhances the testbed infrastructure utilization and improves the experiments deployment efficiency. The research cases proved its significant features of conveniency, fidelity, universality and scalability.
出处
《高技术通讯》
EI
CAS
CSCD
北大核心
2009年第8期778-784,共7页
Chinese High Technology Letters
基金
863计划(2006AA01A118
2005DKA64004)
国家自然科学基金(60673180)
中德国际合作(01BU0680)资助项目
