ICBF：汽车Ad-Hoc网络中一种改进的CBF算法

汽车Ad-Hoc网络是一种特殊的Ad-Hoc网络，其路由层面临着许多挑战。本文提出汽车Ad-Hoc网络中一种改进的CBF算法--ICBF。通过速度、方向和距离三个重要的因素控制定时器，更准确地选择下一跳转发节点；利用城市场景下汽车与相邻汽车之间速度差较小的特点，减少了数据包的广播；提出一种新的锚点路径选择算法，使得ICBF协议能够主动地感知地理拓扑和交通密度，从而达到优化路由性能的目的。实验表明，在城市场景下，ICBF算法能提高数据转发成功率，减少网络的带宽负荷。

ICBF:An Improved CBF Algorithm for Vehicular Ad-Hoc Networks

Vehicular ad-hoc network is a special one and the routing in these networks faces many challenges.This paper presents an improved CBF algorithm called ICBF for vehicular ad-hoc networks.The new algorithm can choose the next forwarder more correctly by using speed,direction and distance to set up the timer.It reduces the broadcasting of data packets by making use of the small difference of speed between vehicles in the city scenario.It can also actively sense the road structure and traffic density by a new method of choosing the anchor-based path,so the algorithm performs well in the vehicular ad-hoc network in the city scenario.Experiments show that in the city scenario ICBF can achieve a higher packet delivery ratio and a lower bandwidth load.