关键词: 工业物联网, 区块链, 多目标优化, 吞吐率, 通讯开销

Abstract: Aiming at the problems of low throughput and high deployment cost with blockchain application in Industrial Internet of Things (IIOT),a Multi-objective Optimization Method of Blockchain (MOMOB) based on IIOT was proposed to balance the throughput and communication overhead.The method randomly fitted the original data and generated the original parent population based on binary crossover and polynomial mutation,and a choose Own Elite fast elitist Non-dominated Sorting Genetic Algorithm (OE-NSGA-Ⅱ) was proposed to find the elite solution set,and the most optimal number of blockchain nodes was calculated with iterative algorithm finally.Experimental analysis and verification showed that the convergence and divergence proposed algorithm was improved by solving the pseudo dominating point problem,which significantly increased the throughput rate of the blockchain,reduced the deployment and communication costs,and met the needs of the blockchain to land the IIoT.

Key words: industrial Internet of things, blockchain, multi-objective optimization, throughput, communication overhead