Abstract
Localization in an urban area is a challenging problem due to the blocking of Line-of-Sight (LOS) signal by various obstacles and also the multipath effect arising out of reflections and scattering of signals. Assuming that there are a few anchor nodes which know their positions accurately and which transmit ultrasonic signals, we propose here a technique to find the position of other sensor nodes based on receiving these ultrasonic signals reflected by some reflectors. Our proposed technique can calculate the position of a node correctly by receiving two reflected signals (Non-Line-of-Sight (NLOS)) from an anchor. We, however, assume that a signal is reflected at most once before reaching a node and the two reflecting surfaces are non-parallel to each other.
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Mondal, K., Mandal, P.S., Sinha, B.P. (2012). Localization in Presence of Multipath Effect in Wireless Sensor Networks. In: Koucheryavy, Y., Mamatas, L., Matta, I., Tsaoussidis, V. (eds) Wired/Wireless Internet Communication. WWIC 2012. Lecture Notes in Computer Science, vol 7277. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-30630-3_12
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DOI: https://doi.org/10.1007/978-3-642-30630-3_12
Publisher Name: Springer, Berlin, Heidelberg
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