Abstract
The data collected by the sensor nodes in a Wireless Sensor Network (WSN) is relevant only if the location and the time of data generation are known. Therefore, the position and time synchronization of the sensor nodes is important. In this paper, we treat these as one problem, and therefore, we proposed JLCS, a method that jointly localizes and synchronizes the nodes in the network. We utilize the Time of Arrival (TOA) method to determine the distance between the sensor nodes. During this time, the grading factor is exchanged between nodes to synchronize. Clock synchronization is achieved by taking square root of the clock time as many times as the grading factor. By simulation, we have compared the proposed method (JLCS) with the Unconstrained Weighting Least Square (UWLS) method for synchronization and localization errors. The proposed method has better synchronization and localization accuracy and suitable for larger networks.
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Tabassum, N., Geetha, D.D., Biradar, R.C. (2022). Joint Position Estimation and Synchronization of Clocks in WSN. In: Yang, XS., Sherratt, S., Dey, N., Joshi, A. (eds) Proceedings of Sixth International Congress on Information and Communication Technology. Lecture Notes in Networks and Systems, vol 235. Springer, Singapore. https://doi.org/10.1007/978-981-16-2377-6_39
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DOI: https://doi.org/10.1007/978-981-16-2377-6_39
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