Node Hop Distance Error Optimization of Improved DV-Hop Localization Algorithm in Wireless Sensor Network

Huijie Qu; Liu Yang; Luling Duan

doi:10.54691/sjt.v4i7.1273

Authors

Huijie Qu
Liu Yang
Luling Duan

DOI:

https://doi.org/10.54691/sjt.v4i7.1273

Keywords:

WSN; DV-Hop; Hop Distance Error Optimization.

Abstract

Based on the lower accuracy of classic DV-Hop localization algorithm, this thesis puts forward an improved DV-Hop localization algorithm. In the second phase of the improved algorithm, through selectively modifying the shortest path table, the hop distance error of a hop anchor node is reduced by using the neighbour node overlapping estimation, and the average hop distance is calculated with the two poles of whole network and local network. Meanwhile, the hop count distribution from nodes to corresponding anchor nodes within the communication range of nodes is used to modify the hop distance of N hop nodes, and the simulation experiment is conducted. The experimental results show that, in the experimental scene, the accuracy of the improved DV-Hop localization algorithm is about 10% higher on average than that of the classical DV-Hop localization algorithm.

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