一种高效快速的无人机自组网网关切换算法

Efficient and fast UAV Ad hoc network gateway switching algorithm

针对无人机自组网网关节点突然失效给网络性能和网络可靠性带来的不利影响,提出一种高效快速的无人机自组网网关切换算法。首先,设计了备份网关的选择机制,通过考虑网关节点和邻居节点之间的距离因素从而选出备份网关节点;其次,改进了网关失效识别机制,备份网关可以更快地检测出网关节点是否失效;最后,提出了高效快速的无人机自组网网关切换机制,减少了网关功能失效的时间。仿真结果表明,所提算法可以降低无人机自组网网关的失效时间,提高无人机网络的可靠性并使时延、吞吐量等性能得到了提升。

For the issues that adverse effects of sudden failure of Ad hoc gateway nodes on network performance and network reliability of unmanned aerial vehicle(UAV),this paper proposed an efficient and fast UAV Ad hoc network gateway switching algorithm.Firstly,it designed the selection mechanism of backup gateway,and selected the backup gateway node by considering the distance between gateway node and neighbor node.Secondly,it improved the mechanism of gateway failure identification,and the backup gateway could detect the failure of gateway node more quickly.Finally,it proposed an efficient and fast handoff mechanism of UAV Ad hoc gateway,which reduced the failure time of gateway.Simulation results show that the proposed algorithm can be reduced.The failure time of UAV Ad hoc gateway improves the reliability of UAV network and improves the performance of delay and throughput.