A GPSR protocol based on Mobile Prediction and Node Stability
Zhanlong Yang, Yawen Xiong, Yiwei Shangguan, Zilong Wang, Yafang Yin · 2024
In unmanned aerial vehicle (UAV) ad hoc networks, a GPSR protocol based on mobile prediction and node stability (GPSR-MPNS) is proposed to solve the problem of inaccurate location of neighbor nodes caused by periodic HELLO mechanism and poor link stability caused by high-speed movement of node in GPSR protocol. The protocol introduces a failure node screening mechanism to predict the position of neighbor nodes and eliminate the failed neighbor nodes in the neighbor list, which reduces the probability of forwarding data by the failure nodes. At the same time, it comprehensively considers the distance between neighbor nodes and destination nodes, link lifetime and the number of effective neighbor nodes to select the next hop forwarding node, in order to improve the stability of the selected node and make the established link more reliable. The simulation results show that compared with GPSR protocol, GPSR-NS protocol's average end-to-end delay is reduced by 57.54% and 23.31% respectively, packet loss rate is reduced by 22.16% and 17.91% respectively, routing overhead is reduced by 38.74% and 24.01% respectively, and network throughput is increased by 99.96% and 63.06% respectively.