Abstract
In Wireless Sensor Networks (WSN), node localization is one of the most crucial issues as many WSN applications depend on the accurate position of the sensor nodes. To improve the node localization, a range-free localization algorithm is proposed in this paper, viz., improved Distance Vector (IDV) Hop Localization based on Particle Swarm Optimization (PSO). In the proposed algorithm, hop size of the anchor nodes is modified using the correction factor. By updating the correction factor, distance measurement between nodes becomes accurate, which is the result of good localization of nodes. Further to improve accuracy, PSO is applied, because localization in WSN is an optimization problem. With the help of bounded population feasible region, PSO-IDV locates the unknown nodes more accurately and achieves higher convergence rate relatively. Simulation results show that our proposed algorithm is efficient and more accurate in terms of localization accuracy.
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Sharma, G., Rajesh, A. (2020). PSO-Based Improved DV-Hop Localization Algorithm in Wireless Sensor Networks. In: Singh Tomar, G., Chaudhari, N.S., Barbosa, J.L.V., Aghwariya, M.K. (eds) International Conference on Intelligent Computing and Smart Communication 2019. Algorithms for Intelligent Systems. Springer, Singapore. https://doi.org/10.1007/978-981-15-0633-8_10
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DOI: https://doi.org/10.1007/978-981-15-0633-8_10
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