Abstract
Ranging and positioning of wireless mobile devices using time-of-arrivals (TOA) method is becoming an increasingly interesting and challenging research topic. There are various TOA-based ranging algorithms and positioning systems, but most of them require either specially designed hardware or modifications to existing firmware. Using only off-the-self hardware, we present a novel software-based TOA ranging approach which accurately measures TOAs using the Real Time Application Interface (RTAI) operating system. A prototype system is implemented which provides precise measurements of round trip time (RTT) using IEEE 802.11b MAC layer ACK frames and the real-time communication mechanism provided by RTAI. Experiments show that using RTAI can achieve a ranging result with precision close to the accuracy obtained by hardware based methods.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Dozio, L., Mantegazza, P.: Real time distributed control systems using RTAI. In: Sixth IEEE International Symposium on Object-Oriented Real-Time Distributed Computing, pp. 11–18 (May 2003)
Koyuncu, H., Yang, S.H.: A survey of indoor positioning and object locating system. International Journal of Computer Science and Networks Security 10(5), 121–128 (2010)
Liu, H., Darabi, H., Banerjee, P., Liu, J.: Survey of wireless indoor positioning techniques and systems. IEEE Transactions on Systems, Man, and Cybernetics, Part C: Applications and Reviews 37(6), 1067–1080 (2007)
Bill, R., Cap, C., Kofahl, M., Mundt, T.: Indoor and outdoor positioning in mobile environments – a review and some investigation on WLAN positioning. Geographic Information Sciences 10(2), 91–98 (2004)
Izquierdo, F., Ciurana, M., Barcelo, F., Paradells, J., Zola, E.: Performance evaluation of a TOA-based trilateration method to locate terminals in WLAN. In: 1st International Symposium on Wireless Pervasive Computing, pp. 1–6 (January 2006)
Karalar, T., Rabaey, J.: An RF tof based ranging implementation for sensor networks. In: IEEE International Conference on Communications, vol. 7, pp. 3347–3352 (June 2006)
Golden, S., Bateman, S.: Sensor measurements for Wi-Fi location with emphasis on time-of-arrival ranging. IEEE Transactions on Mobile Computing 6(10), 1185–1198 (2007)
Ciurana, M., López, D., Barceló-Arroyo, F.: SofTOA: Software Ranging for TOA-Based Positioning of WLAN Terminals. In: Choudhury, T., Quigley, A., Strang, T., Suginuma, K. (eds.) LoCA 2009. LNCS, vol. 5561, pp. 207–221. Springer, Heidelberg (2009)
Muthukrishnan, K., Koprinkov, G., Meratina, N., Lijding, M.: Using time-of-flight for WLAN localization: feasibility study. Center for Telematics and Information Technology (WLAN) technical report, TR-CTIT-06-28 (June 2006)
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2012 ICST Institute for Computer Science, Social Informatics and Telecommunications Engineering
About this paper
Cite this paper
Fang, J., Lim, A., Yang, Q. (2012). TOA Ranging Using Real Time Application Interface (RTAI) in IEEE 802.11 Networks. In: Rodrigues, J.J.P.C., Zhou, L., Chen, M., Kailas, A. (eds) Green Communications and Networking. GreeNets 2011. Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, vol 51. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-33368-2_8
Download citation
DOI: https://doi.org/10.1007/978-3-642-33368-2_8
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-33367-5
Online ISBN: 978-3-642-33368-2
eBook Packages: Computer ScienceComputer Science (R0)