CAJ | 학술논문

传感器网络技术是普通计算中实现位置感知和上下文感知的主要技术手段,有着广泛的应用前景.文中提出了一种适合普适计算环境下多级能量异构尢线传感器网络的新的剩余能量预测REP模型和可靠聚簇路由RCR协议.协议中节点通过建立相邻节点剩余能量预测机制,使选举簇头节点的概率与节点当前剩余能晕直接相关,以优化数据传输路径.均衡节点的能量消耗.延长网络寿命.此外还通过多簇头方法.采用每个簇由多簇头节点共同承担簇头节点的作用,提高数据传输可靠件.仿真实验结果表明,RCR协议能获得比LEACH协议和HEED协议等主要聚簇协议更长的生存时间、更高的能量利用率和更高的数据传输可靠性.
전감기망락기술시보통계산중실현위치감지화상하문감지적주요기술수단,유착엄범적응용전경.문중제출료일충괄합보괄계산배경하다급능량이구왕선전감기망락적신적잉여능량예측REP모형화가고취족로유RCR협의.협의중절점통과건립상린절점잉여능량예측궤제,사선거족두절점적개솔여절점당전잉여능훈직접상관,이우화수거전수로경.균형절점적능량소모.연장망락수명.차외환통과다족두방법.채용매개족유다족두절점공동승담족두절점적작용,제고수거전수가고건.방진실험결과표명,RCR협의능획득비LEACH협의화HEED협의등주요취족협의경장적생존시간、경고적능량이용솔화경고적수거전수가고성.
Wireless sensor networks,which is utilized in a broad foreground,is able to monitor and collect various information for location-aware or context-aware systems in ubiquitous computing environment.This paper proposes a novel remaining energy prediction model and reliable clustering routing protocol for multilevel energy heterogeneous wireless sensor networks in ubiquitous computing environment,in which a node,according to energy prediction mechanism,independently makes its decision to compete for becoming a master cluster head in order to optimize routing,improve energy efficiency and prolong system lifetime.In addition,this protocol selects multi-cluster-heads in every cluster together as one cluster head,performing data fusion and data transmission SO that data transmission reliability is enhanced.The results of simulation show that compared with LEACH and HEED protocol,the RCR protocol could lead to prolong sensor networks lifetime,improve energy efficiency and enhance data transmission reliability.