基于跨层快速邻居感知的OLSR协议

提出了一种基于跨层快速邻居感知的OLSR协议——FS-OLSR,协议在采用hello消息进行链路感知和邻居探测的基础上,结合链路层反馈的信息对网络层邻居表进行更新,以增强节点的邻居感知能力;并将邻居节点的新鲜度作为MPR计算的依据,以提高拓扑消息中广播邻居节点的新鲜度,使之更加适合于快速移动场景。仿真结果表明,在快速移动场景中,FS-OLSR能够在增加少量路由开销的情况下,显著降低丢包率。

A Cross-layer Fast Neighbor Sensing Based OLSR Protocol

A cross-layer fast neighbor sensing based OLSR protocol(FS-OLSR),which was designed to meet the need for fast mobility,was proposed in this paper.In FS-OLSR protocol,a link-layer feedback extension to OLSR protocol that worked alongside the hello message was proposed to boost the ability of neighbor sensing.Meanwhile,the neighbor freshness was introduced and taken into account when computing the MPR Set to improve the freshness of the advertised neighbor in TC message.The simulation results show that FS-OLSR could significantly reduce packet loss rate with a little more overhead traffic in the fast mobility environment.