Optimization Method of Multipath OLSR Protocol in Flying Ad Hoc Network

Data transmission in flying Ad Hoc network (FANET) depends greatly on routing protocol. Multi-Path optimized link state routing (MPOLSR) is a popular one. However, due to frequent topology changes in the FANET, there are some disadvantages in applying the original protocol. Aiming at the low packet delivery rate, large delay and low throughput caused by MPOLSR protocol in FANET, a node selection and routing update algorithm based on link transmission quality is proposed in this paper. The algorithm combines link quality and node connectivity to select a MultiPoint Relay node set, and distinguishes link weights based on link transmission quality. At the same time, we replace the original protocol algorithm with the shortest path faster algorithm. Simulation results show that the proposed protocol improves the packet delivery rate and throughput performance, and reduces the end-to-end delay.