容迟容断传感器网络中基于节点活跃性的路由  

Activity-based routing for delay/disruption tolerant mobile sensor network

作　　者：刘杰彦[1] 刘明[1] 龚海刚[1] 曾家智[1] 

机构地区：[1]电子科技大学计算机科学与工程学院,成都611731

出　　处：《电子测量与仪器学报》2011年第12期1047-1053,共7页Journal of Electronic Measurement and Instrumentation

基　　金：国家自然科学基金(No:61003229;60903158;60703113)资助

摘　　要：容迟容断移动传感器网络DTMSN(delay/disruption tolerant mobile sensor network)用于广泛的数据收集,在DTMSN动态变化的网络环境中传统传感器网络的路由策略不再适用。提出了一种基于节点活跃性的路由策略ABR(activity-basedrouting),其出发点为:网络中节点因其所附着实体的活跃程度不同而呈现不同的活跃性,经活跃节点复制的消息在网络中可能存在更多的副本,通常其到达汇聚点的可能性也更高。为此,ABR基于消息经过节点的活跃性来决定消息的优先权,并进一步基于消息的优先权来控制数据传输过程和进行缓存管理。实验表明,与现有的几种路由策略相比,ABR以相对较低的数据传输能耗和传输延迟获得了较高的数据传输成功率。Delay/Disruption Tolerant Mobile Sensor Network（DTMSN） is the network for pervasive information gathering.Traditional routing approaches may not fit for DTMSN because the network is changeable.Since the activities of different sensors may vary for they are attached to different entities,the message replicated by the active sensors may exit more copies in the network and it has a high possibility of being received by the sink nodes.Therefore,an Activity-based Routing protocol（ABR） is proposed in this paper,in which the priority of the message is decided by the carriers＇ activities,and the priority of the message is further used in the processes of message transmission and queue management.The simulation results show that compared with the relevant protocols,ABR gets higher message delivery ratio with lower delivery cost and delay.

关 键 词：容迟容断移动传感器网络 路由 活跃性 优先权 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]