• Sabita Soreng
• Dr. S. Pallam Setty

Localization is very important in wireless sensor networks for determining the position of the sensor node. In real time application the multilateration range based scheme gives better accuracy information about the location of the sensor node. A prototype system with three anchor nodes and one unknown target node was implemented using trilateration technique and experiments were conducted to find out the location of unknown target node by using three known location of anchor nodes. The localization algorithm calculates the distance and angle of the unknown target node with reference to three anchor nodes. The goal of this paper is to present a comprehensive real-world evaluation method for calculating the location of the unknown target node based on Time Difference of Arrival (TDOA) and range measurements. The experimental result concluded that localization algorithm gives sufficiently accurate localization results with mean error of 3.7 cm in a 3*3 meter area.

Wireless sensor network, localization, multilateration, trilateration, TDOA

"Design and Development of Prototype system for Estimating Localization Error in Wireless Sensor Network ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 6, page no.381-385, June 2019, Available :http://www.jetir.org/papers/JETIR1907654.pdf

"Design and Development of Prototype system for Estimating Localization Error in Wireless Sensor Network ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 6, page no. pp381-385, June 2019, Available at : http://www.jetir.org/papers/JETIR1907654.pdf