Title :
L-VIRT: A 3-D Range-Free Localization Method for RFID Tags Based on Virtual Landmarks and Mobile Readers
Author :
Bouet, Mathieu ; Pujolle, Guy
Author_Institution :
Comput. Sci. Lab. of Paris 6 (LIP6), Univ. Pierre & Marie Curie (UPMC), Paris
Abstract :
RFID is an automatic identification technology that enables tracking of people and objects. This research focuses on improving context-awareness by associating locations to identities. We propose L-VIRT, an extension of our 3-D range- free localization method for RFID tags that uses additional mobile readers to refine its accuracy. Topological constraints are deduced from connectivity information and combined with virtual landmarks to localize tags. Mobile tags are localized with the static reader infrastructure while the localization of static tags is enhanced with mobile readers. Simulation results show a fine-grained accuracy when readers are densely deployed and an impressive error reduction when few mobile readers are involved.
Keywords :
radiofrequency identification; 3-D range-free localization method; L-VIRT; RFID tags; automatic identification technology; connectivity information; context-awareness; mobile readers; static reader infrastructure; topological constraints; tracking; virtual landmarks; Active RFID tags; Computer errors; Computer science; Information retrieval; Laboratories; Mobile computing; Navigation; RFID tags; Radiofrequency identification; Wireless sensor networks;
Conference_Titel :
Consumer Communications and Networking Conference, 2009. CCNC 2009. 6th IEEE
Conference_Location :
Las Vegas, NV
Print_ISBN :
978-1-4244-2308-8
Electronic_ISBN :
978-1-4244-2309-5
DOI :
10.1109/CCNC.2009.4784820
