An Optimized Routing OLSR Protocol with Low Control Overhead for UAV Ad Hoc Networks

OLSR (Optimized Link State Routing) protocol is a priori Routing applied in MANET network. All nodes the network have information to other locally and need send large number of control messages maintain topology whole In UAV application scenarios, with increase node density, overhead will be too high problems hidden terminals intensified. Secondly, due fast moving speed UAVs, when neighboring UAVs moved out communication range local node, still retains routing neighbor leading problem packet loss link updated behind time. Aiming at above problems, an low optimal proposed. The uses incremental HELLO message mechanism ensure that only exchanged changes slowly, greatly reduced. When calculating routing, n hops, more stable selected under same hops. Simulation results show proposed algorithm can significantly improve success rate transmission end-to-end delay, reduce system overhead.