An improved node localization algorithm based on DV-HOP in WSN

Efficient sensor node localization algorithm is a research highlight in the applications of wireless sensor networks (WSN). An event information with few node location information is meaningless in practical application. The number and density of nodes shared by unknown-distance node pair are applie...

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Bibliographic Details
Main Authors: Guo Qing Gao, Lin Lei
Format: Conference Proceeding
Language:English
Subjects:
Anodes
Automation
CDDV-HOP
DV-HOP
Event detection
Gas detectors
Global Positioning System
least square method
Least squares methods
localization
Mathematical model
Monitoring
Wildlife
wireless sensor network
Wireless sensor networks
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Summary:Efficient sensor node localization algorithm is a research highlight in the applications of wireless sensor networks (WSN). An event information with few node location information is meaningless in practical application. The number and density of nodes shared by unknown-distance node pair are applied to establish close degree model in the paper. The close degree model is also combined with the triangle similarity theory to propose a mathematical model to calculate the distance of single-hop and multi-hop nodes. The simulation results show that the normalized localization error of the improved algorithm is smaller than the conventional DV-HOP algorithm.
DOI:10.1109/ICACC.2010.5486944