摘要
车载传感器网络是一种建立在车载自组织网络基础上的以数据为中心的新型移动传感器网络。与传统传感器网络不同的是,车载传感器网络中的节点是高速移动的,从而导致网络间歇连通、拓扑结构变化频繁,网络中数据的传输只能依靠节点间机会性的传递,严重影响了这种以数据为中心的网络中的数据传输的性能。对目前车载传感器网络的研究现状进行了分析讨论,同时结合延迟容忍网络和机会网络思想,给出了车载传感器网络的研究方向。
Vehicle Sensor Networks(VSNS) compose of many vehicles equipped with different types of sensors,which are data-centric mobile sensor networks.Compared with traditional wireless sensor networks,the nodes of VSNS move rapidly,leading to intermittent connectivity and frequent topology change,so that data transmissions in VSNS depend on opportunistic transmissions among nodes,which degrades the performance of data delivery.The state of the arts of the research on vehicle sensor networks was discussed.Introduced with the idea of delay tolerant networks and opportunistic networks into VSNs,the hot research issues on vehicle sensor networks were presented.
出处
《计算机科学》
CSCD
北大核心
2011年第B10期319-322,共4页
Computer Science
基金
国家自然科学基金项目(61003229)
中央高校基本科研业务费专项资金(ZYGX2009J063
ZYGX2010J074)资助
关键词
车载传感器网络
数据收集
间歇连通
延迟容忍
Vehicle sensor networks
Data gathering
Intermittent connectivity
Delay tolerant