A Cross-Layer Ad Hoc On-demand Directional Routing Algorithm
基于跨层协同设计的Ad Hoc按需定向路由算法

A cross-layer Ad Hoc on-demand directional routing algorithm,CAODR,is presented.It is based on AODV routing algorithm and designed by crossing network layer,MAC layer and physical layer.With the help of directional antennas,it can send unicast packets directionally.Then,packet collision resulting from hidden terminals and unneces- sary waiting resulting from exposed terminals are decreased.The improvement is proved mathematically.From per- formance analysis and simulation experiments,we can find that CAODR have many advantages.Compared to the clas- sic AODV,CAODR improves many performances,such as the end-to-end delay,the throughput and the success rate.