移动WSNs中基于接触时间的区路由

Contact Time-Area Based Routing for Mobile Wireless Sensor Networks

绝大部分的无线传感网络应用要应对节点的变化.为此,在移动无线传感网络(Mobile Wireless Sensor Networks,M-WSNs)这项技术上,设计了以接触时间为准的区路由(Contact Time-Area based Routing,CTAR).CTAR路由的目标节点以及源节点的相应位置信息组建了活动区域,但存在一定的限制,即只能是处于这个区域里的节点才能加入.继而,在与CTAR关联节点的移动矢量信息基础上进行接触时间的计算,然后选择能够最大化接触时间的邻节点作为下一跳转发节点.仿真数据表明,相比以接收器的机会转发(RoF)为准的体系,CTAR体系的数据包传递率有很大的发展前景.

The vast majority of wireless sensor network applications have to deal with the changes of nodes.Therefore,a Contact Time-Area Based Routing(CTAR)based on Mobile Wireless Sensor Networks(M-WSNs)was designed.The target node of the CTAR route and the corresponding location information of the source node formed the active region with some restrictions,i.e.,only the nodes in this region can join.Then,the contact time was calculated based on the movement vector information of the node associated with CTAR,and the neighbor node that can maximize the contact time was selected as the next hop forwarding node.According to the simulation data,it can be seen that compared with the system based on the receiver’s opportunity forwarding(RoF),the packet transfer rate of CTAR system had a great development prospect.