3D DV-hop localisation scheme based on particle swarm optimisation in wireless sensor networks
by Xiao Chen; Benliang Zhang
International Journal of Sensor Networks (IJSNET), Vol. 16, No. 2, 2014

Abstract: To improve the node localisation performance of the distance vector-hop (DV-hop) algorithm in the three-dimensional (3D) space, an improved range-free node localisation algorithm in the 3D wireless sensor networks is proposed by analysing the lack of the existing 3D localisation algorithms. After performing the 3D DV-hop algorithm, we use the particle swarm optimisation (PSO) algorithm with the inertia weight to emend unknown nodes' location estimated by the 3D DV-hop algorithm. The simulation results show that the proposed algorithm, in comparison with the original 3D DV-hop algorithm, greatly reduces the localisation error and error variance. It enhances the localisation precision and stability effectively without increasing the additional hardware and communication cost.

Online publication date: Thu, 27-Nov-2014

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