期刊名称：International Journal of Wireless & Mobile Networks
印刷版ISSN：0975-4679
电子版ISSN：0975-3834
出版年度：2013
卷号：5
期号：6
页码：21-36
DOI：10.5121/ijwmn.2013.5602
出版社：Academy & Industry Research Collaboration Center (AIRCC)
摘要：A 2D location detection system is constructed by us ing Wireless Sensor Nodes (WSN) to create aVirtual Fingerprint map, specifically designed for use in a n indoor environment. WSN technologies and programmable ZigBee wireless network protocols are employed. This system is based on radio-location fingerprinting technique. Both Linear taper functio ns and exponential taper functions are utilized wit h the received signal strength distributions between the fingerprint nodes to generate virtual fingerprint m aps. Thus, areal and virtual combined fingerprint map is generated across the test area. K-nearest neighborhood algorithm has been implemented on virt ual fingerprint maps, in conjunction with weight functions used to find the coordinates of the unkno wn objects. The system Localization accuracies of l ess than a grid space areproved in calculations.
关键词：Wireless Sensors Node (WSN); Received Signal Streng th (RSS); Link Quality Indicator;(LQI); Application Program (AP); Weight function; Fingerprint; k-NN al gorithm; Interpolation function; Virtual Node (VN); ZigBee protocol; Jennic.
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