Cross Layer Method of Reliable Transmission in UAV Ad Hoc Network Based on Improved Ant Colony Algorithm

In order to improve the quality of communication between UAVs, a cross layer reliable transmission method based on improved ant colony algorithm is proposed in this study. According to the free space attenuation model, the threshold of signal strength for receiving messages from neighbor nodes is defined. Then, the improved ant colony algorithm is used to calculate the path stability between the source node and the destination node, so as to perceive the stability of the reliable transmission path of UAV ad hoc network. The running speed of the buffer area is calculated according to the cache queue length of UAV ad hoc network, and the congestion in the transmission process is detected. Finally, through the energy consumption and transmission balance mechanism, improve the routing process of data transmission between UAV formations to achieve reliable transmission of UAV ad hoc networks. The experimental results show that this method can effectively reduce the transmission outage probability. With the increase of data transmission rate and UAV speed, lower average delay and higher delivery success rate can be obtained.