无人机自组网按需寻路的可靠OLSR协议

无人机自组网应用场景中,针对OLSR(Optimized Link State Routing)协议在数据通信阶段,无人机快速移动可能引起通信链路中断,并且OLSR协议没有链路维护机制,导致发包成功率降低和时延增加.在节点入网阶段,无人机无法及时获取全网拓扑信息,导致通信失败.本文借鉴AODV(Ad Hoc On Demand Distance Vector)路由协议中按需寻路思想,提出一种按需寻路的可靠OLSR协议.该算法提出了两个优化思路:基于TC全网寻路机制和基于HELLO邻居寻路机制,通过增加路由获取途径,维护多跳链路的稳定性.通过仿真实验将该协议与现有协议进行比较,实验结果表明,该协议在不增加控制开销的前提下,提高网络的发包成功率,端到端时延和吞吐量.

Reliable OLSR Protocol for on Demand Pathfinding of Drone Ad Hoc Networks

In the UAV ad hoc network application scenario,during the data communication phase of the OLSR(Optimized Link State Routing)protocol,the rapid movement of the UAV may cause the communication link to be interrupted,and the OLSR protocol does not have a link maintenance mechanism,which reduces the success rate of packet sending And delay increase.During the node's network access phase,the drone cannot obtain the topology information of the entire network in a timely manner,resulting in communication failure.This paper draws on the AODV(Ad Hoc On Demand Distance Vector)routing protocol's on-demand routing idea,and proposes a reliable on-demand routing OLSR routing protocol.This algorithm proposes two optimization ideas:based on the TC network-wide pathfinding mechanism and based on the HELLO neighbor pathfinding mechanism,by adding routes to obtain routes,maintaining the stability of multi-hop links.This protocol is compared with existing protocols through simulation experiments.The experimental results show that the protocol improves the packet sending success rate,end-to-end delay,and throughput without increasing the control overhead.