无人机自组网中基于速度向量的AOMDV协议

An AOMDV protocol based on velocity vector in UAV ad hoc networks

针对按需多径距离矢量路由协议(ad hoc on-demand multipath distance vector,AOMDV)采用路由跳数作为选择标准造成的链路不稳定、易断裂,路由修复效率低等问题,提出一种应用于无人机自组网的基于速度向量的路由协议(AOMDV protocol based on speed vector,SV-AOMDV)。在路由发现过程中,综合考虑每个无人机节点的速度向量和能量,得到包含相邻无人机节点间速度差异、角度差异和最小能量的链路综合状态差异参数,在多条链路中选择包含最小最大综合状态差异参数的链路传输消息。在路由修复过程中,从链路断裂处寻找上、下游节点与断裂处节点速度向量相近的共同邻居节点重新建立链路。仿真结果表明,与AOMDV和基于过程能量的(proceed energy-AOMDV,PE-AOMDV)路由协议相比,SV-AOMDV的节点剩余能量分别提高了73.0%和64.5%,平均端到端时延分别降低了90.0%和89.1%,路由恢复频率分别降低了79.1%和79.7%,路由开销分别降低了51.0%和27.9%。

In unmanned aerial vehicle(UAV)ad hoc network with on-demand multi-path distance vector routing protocol ad hoc on-demand multipath distance vector(AOMDV),the link is unstable and easy to break due to the number of routing hops,and the repair efficiency is low.A routing protocol,AOMDV protocol based on Speed Vector(SV-AOMDV based on speed vector)is proposed.In the protocol,the speed vector and energy of each drone are considered,and the maximum ratio between UAV adjacent to each link is then obtained.A minimum link is finally selected to transmit from the maximum ratio of multiple links.When the route is repaired,the common neighbour node whose velocity vector is similar to the upstream and downstream nodes is found from the fault to re-establish the link.Simulation results show that compared with AOMDV and PE-AOMDV routing protocols,the residual energy of SV-AOMDV is increased by 73%and 64.5%,and the average end-to-end delay is reduced by 90%and 89.1%,respectively.The frequency of routing recovery is reduced by 79.1%and 79.7%,and the routing overhead is also reduced by 51%and 27.9%respectively.