论文部分内容阅读
传统无线传感器网络地理路由协议依赖信标广播进行路由决策,在动态网络环境中存在能耗高、通信开销大,不适应节点密集部署等不足.无信标转发可以在不需要邻居节点任何先验状态信息下在线选出转发节点,能够克服基于信标广播的地理路由不能适应动态网络环境的问题.基于无信标转发的地理路由在节约能量、降低通信开销、尤其是适应动态网络等方面具有很强的优势.本文在阐述无信标转发关键问题的基础上,对当前典型无信标地理路由协议进行综述,并从协议特点对相关协议进行比较分析,最后对无信标地理路由未来的研究方向进行了探讨.
Traditional WSNs rely on beacon broadcast to make routing decisions, which results in high energy consumption, large communication overhead and unattended deployment of dense nodes in a dynamic network environment.Non-beacon forwarding can be performed without any priori knowledge of neighbors State information to select the forwarding node online can overcome the problem that the geographic routing based on beacon broadcast can not adapt to the dynamic network environment.Based on the principle of saving energy and reducing communication overhead, Strong advantage.On the basis of expatiating the key issues of no beacon forwarding, this paper summarizes the current typical non-beacon geo-routing protocols and compares and analyzes the relevant protocols from the features of the protocol.Finally, Research direction has been discussed.