A hop correction-based node localization algorithm in things of network

In view of the large localization error in the traditional DV-Hop algorithm in wireless sensor network, node localization based on lion swarm optimization (NLLSO) algorithm is proposed in this paper. In NLLSO algorithm, the minimum-hop estimation, average hop error correction and position process are optimized to reduce the localization error. Beacon packet is transmitted in multiple communication radii way, and accuracy of estimating minimum-hop count is improved. In addition, the weight is introduced to correct the average hop. Finally, lion swarm optimization algorithm is used to solve the position of the node. The simulation results show that positioning accuracy of NLLSO algorithm is significantly improved compared with traditional DV-Hop algorithm.