Greedy Forwarding and Limited Flooding based Routing Protocol for UAV Flying Ad-Hoc networks

UAV flying ad-hoc networks (UAV-FANETs) usually consist of multiple Unmanned Aerial Vehicles (UVAs) using the ad-hoc networking manner. This paper proposes an ad-hoc routing protocol (PSO-GLFR) for FANETs based on greedy forwarding and limited flooding. PSO-GLFR combines the greedy peripheral stateless routing protocol (GPSR) and the ad hoc on-demand distance vector routing protocol (AODV). PSO-GLFR divides the routing process of FANETs into the greedy routing stage and the flooding path-finding stage, and uses the particle swarm optimization (PSO) strategy to solve the suboptimal choice problem of greedy forwarding. Simulation results show that PSO-GLFR is efficient and may provide low-latency, low-energy routing support for UAV-FANETs.