Application Layer ARQ and Network Coding for QoS Improving in UAV-assisted networks
Danil S. Vasiliev, Andrei Chunaev, Albert Abilov, Irina Kaisina, Daniil S. Meitis · 2019
In this paper, we assess the efficiency of developed application layer automatic repeat-request (AL-ARQ) algorithm in UAV-assisted ad hoc network. We emulate HD video streaming using Ubuntu Mate 16 virtual machines, B.A.T.M.A.N. routing protocol, and NS-3 simulation tool. We cope with congestions at the relay node using COPE-like network coding implemented in the routing protocol. The relay node could be stationary like a copter or moving in circle like a fixed-wing drone. AL-ARQ demonstrated packet loss ratio PLRaveavecaused more retransmissions at the application layer and gave more opportunities for network coding to encode packets at the relay node.