Event Based Routing Scheme for FANET

This paper proposes an event-driven AODV routing optimization for highly dynamic Flying Ad hoc Networks (FANETs). Standard AODV relies on active route timeouts, leading to high packet loss and inefficient resource usage when network topologies rapidly change. To address this, we design an extended HELLO message to diminish RREQ flooding overhead and introduce a novel RDISC(Route Discovery) control message. The RDISC mechanism allows nodes to proactively trigger route updates upon link recovery events while maintaining ongoing sessions. Simulation results demonstrate that the proposed protocol significantly minimizes traffic loss and guarantees a stable topology update time independent of timeout configurations, effectively maximizing network efficiency in multi-hop drone swarm operations.