An improved AODV routing security algorithm based on blockchain technology in ad hoc network

Abstract Ad hoc network is a special with centerless and dynamic topology. Due to the free mobility of nodes, routing security has been bottleneck problem that plagues its development. Therefore, multi-path QoS (quality service) algorithm based on blockchain by improving traditional AODV (ad on-demand distance vector) protocol (AODV-MQS) proposed. Firstly, chain nodes established in states all making intermediate are saved. Secondly, smart contract set filter out meet constraints. Finally, two largest unrelated communication paths found through contract, one which main path other standby path. Simulation experiments show performance proposed better than algorithms, especially an unsafe environment.