Improved recursive DV-Hop localization algorithm for average hop distance optimization

• Main Authors: Ren Keqiang, Wang Panpan
• Format: Article
• Language: English
• Published: EDP Sciences 2021-01-01
• Series: MATEC Web of Conferences
• Online Access: https://www.matec-conferences.org/articles/matecconf/pdf/2021/05/matecconf_cscns20_07014.pdf

Aiming at the problem of DV-HOP algorithm with error and energy exhaustion, the average hop distance is used for optimization, and an improved recursion method is used to solve it. The algorithm first squares the distance of anchor nodes, proposes a forgetting factor to optimize the average hop distance between anchor nodes, and secondly uses recursive operations to replace anchor nodes with insufficient energy, so that the localization process of unknown nodes can continue. Experimental results show that compared with the DV-Hop algorithm and the algorithms in related literature, the improved algorithm can reduce the localization error to a certain extent and improve the localization accuracy of unknown nodes.