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Vol. 169, Issue 4, April 2014, pp. 170-173




Distance Difference Algorithm Based on RSSI for Highway
Vehicle Localization

* Guofa Guo, Ning Wang and Kaisheng Zhang

Shanxi University of Science and Technology, College of electrical& information engineering, Xi’an, 710021, China
Tel.: 02986168628, fax: 02986168628

* E-mail: skdzks@sina.com


Received: 16 January 2014 Accepted: 7 March 2014 Published: 30 April 2014

Digital Sensors and Sensor Sysstems


Abstract: Localization based on RSSI technology has been widely used because of low peripherals requirements, less cost and easy-to-use. With the rapid development of intelligent transportation, how to provide more efficient and safer driving environment has become the most important issue. The highway localization system is an important part of the entire intelligent traffic system. According to the characteristics of the high way environment localization, RSSI algorithm suits the best. However, the RSSI algorithm has some shortcomings inherently; therefore, in order to improve localization accuracy, this paper introduced the real-time environment factor and the distance- difference weighted centroid localization algorithm into the traditional weighted centroid algorithm. The simulation has proven that localization accuracy is enhanced by the distance-difference weighted centroid localization algorithm.


Keywords: RSSI, Wireless Sensor Networks (WSNs), Real-time Environment Factor, Weighted Centroid Algorithm.


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