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

• Published in: EURASIP journal on wireless communications and networking Vol. 2021; no. 1; pp. 1 - 16
• Main Authors: Ran, Conglin, Yan, Shuailing, Huang, Liang, Zhang, Lei
• Format: Journal Article
• Language: English
• Published: Cham Springer International Publishing 09.03.2021; Springer Nature B.V; SpringerOpen
• Subjects: Ad hoc network; Ad hoc networks; Algorithms; Algorithms and Architectures for Industrial Wireless Sensor Networks; AODV protocol; Blockchain; Communications Engineering; Cryptography; Engineering; Information Systems Applications (incl.Internet); Networks; Nodes; Quality of service architectures; Routing security; Signal,Image and Speech Processing; Smart contract; Topology; AODV protocol; Smart contract; Ad hoc network; Routing security; Blockchain
• ISSN: 1687-1499; 1687-1472; 1687-1499
• DOI: 10.1186/s13638-021-01938-y

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