Open AccessOn Improved DV‐Hop Localization Algorithm for Accurate Node Localization in Wireless Sensor Networks
Author(s) -
Shen Shikai,
Yang Bin,
Qian Kaiguo,
She Yumei,
Wang Wu
Publication year - 2019
Publication title -
chinese journal of electronics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.267
H-Index - 25
eISSN - 2075-5597
pISSN - 1022-4653
DOI - 10.1049/cje.2019.03.013
Subject(s) - wireless sensor network , hop (telecommunications) , computer science , algorithm , node (physics) , key distribution in wireless sensor networks , computer network , wireless , wireless network , telecommunications , engineering , structural engineering
Node Localization is a fundamental issue for many critical applications in Wireless sensor networks (WSNs). Traditional DV‐Hop localization algorithm and corresponding improved ones still cannot provide su.cient localization accuracy in such WSNs. To ensure accurate localization, this paper proposes an improved DistancevectorHop (DV‐Hop) localization algorithm. Under such an algorithm, we determine a corrected average hopdistance of beacon nodes by employing the di.erences between actual and estimated distance among beacon nodes in WSNs. We propose a probability information based selective strategy for the selection of beacon nodes. Based on these selected beacon nodes, we adopt a two dimensional hyperbolic function to predict the locations of unknown nodes. Simulation results are provided to illustrate the localization accuracy of our algorithm compared with traditional DV‐Hop algorithm and its two improved algorithms in WSNs.