Wireless information networks
Wideband radio propagation modeling for indoor geolocation applications
IEEE Communications Magazine
TEA: transmission error approximation for distance estimation between two Zigbee devices
International Journal of High Performance Computing and Networking
Ultra-wideband radio technology: overview and future research
Computer Communications
Indoor pseudo-ranging of mobile devices using ultrasonic chirps
Proceedings of the 10th ACM Conference on Embedded Network Sensor Systems
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Wireless indoor networks are finding their way into the home and office environments. Also, exploiting location information becomes very popular for both wireless service providers and consumers applications. However, the indoor radio channel causes challenges in extracting accurate location information in indoor environment so that traditional GPS and cellular location systems cannot work properly in indoor areas. This paper provides an overview of the indoor geolocation techniques. After introducing an overall architecture for indoor geolocation systems, technical overview of two indoor geolocation systems are presented. To demonstrate the predicted performance of such systems some simulation results obtained from an indoor geolocation demonstrator are presented.