The position based routing protocols have scalability in the dynamic networks because they needn't maintain explicit routings.
基于位置的路由协议由于不必维护明确的路由，在这种高度动态的网络中具有很好的扩展性。
The basic idea of position based routing algorithm is to select the next hop based on the position information of nodes, and forward the packets to the direction of destination.
基于位置路由算法的基本思想是基于节点的位置信息来选择下一跳，将包向目的节点的方向上进行转发。
The position based routing protocols are adaptable to the dynamic mobile Ad hoc networks due to not maintain explicit routing, and this is an advantage in the topology changing frequently MANET.
由于不必维护明确的路由，基于位置的路由协议即使在网络高度动态的情况下也具有很好的扩展性。
The performance comparison between VTBR and traditional position based routing protocols shows that VTBR algorithm has a much higher packet delivery success rate and a shorter average path length.
通过仿真，文中给出了VTBR算法与传统位置辅助路由协议的性能对比分析，对数据包传输成功率和平均路径长度这两个性能参数进行了评价。
As dynamic changes of topology, position-based routing algorithm and security routing are focuses and key points in this field.
由于拓扑结构的动态变化，位置路由算法和安全路由是其研究的热点和重点。
It forwards packets based on the relative position of the grids rather than a routing tree.
数据的转发可以不用建立路由树，而是直接根据网格的相对位置关系转发。
In order to improve the communication complexity and network security, modified methods are proposed on basis of message transmitting of position-based routing algorithm and network security.
为了改善位置路由算法的通信复杂度和提高网络的安全性，本文在分析位置路由算法中消息转发和网络安全性的基础上，提出改进方法。
In order to improve the communication complexity and network security, modified methods are proposed on basis of message transmitting of position-based routing algorithm and network security.
为了改善位置路由算法的通信复杂度和提高网络的安全性，本文在分析位置路由算法中消息转发和网络安全性的基础上，提出改进方法。
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