Abstract
This paper shows a lightweight technique for extending the positioning capabilities of a global navigation satellite system to areas characterized by reduced satellite visibility. This technique includes the presence of a WiFi coverage, used to implement the virtual satellite concept. In particular we assume that a customer terminal can receive both Global Positioning System (GPS) signals and WiFi beacons broadcasted by an access point (AP). We show that if such beacons include the geo-referenced position of the relevant AP, the suitable usage of this information allows determining the GPS receiver position even if only three satellites are visible. Experimental results show that the achievable performance are similar to that obtainable by a plain GPS receiver using four visible satellites.
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References
Project ICT-217033 “WHERE”, Delivrable D1.1, Performance assessment of Hybrid data fusion and tracking algorithms (December 2008)
Singh, R., Guainazzo, M., Regazzoni, C.: Location Determination using WLAN in Conjunction with GPS Network. In: IEEE VTC 2004-Spring, Milan, Italy, May 17-19 (2004)
Forden, G.: The Military Capabilities and Implications of Chinas Indigenous Satellite-Based Navigation System. Science and Global Security 12, 219–250 (2004)
Bancroft, S.: An Algebraic solution of the GPS equations. IEEE Transaction on Areospace and Electronic Systems 21(1), 56–59 (1985)
Abel, J., Chaffee, J.: Existence and uniquesses of GPS solutions. IEEE Transaction on Areospace and Electronic Systems 27(6), 951–952 (1991)
Abel, J., Chaffee, J.: On the exact solution of pseudorange equations. IEEE Transaction on Areospace and Electronic Systems 30(4), 1021–1030 (1994)
Makrand, S.: Recursive Method for optimum GPS satellite solution. IEEE Transaction on Areospace and Electronic Systems 27(2), 751–754 (2001)
Lee, H.B.: A novel procedure for assessing the accuracy of hyperbolic multilateration system. IEEE Trans. on Areospace and Elect. Systems 11(1), 2–15 (1975)
Yarlagadda, R., Ali, I., Hershey, J.: “GPS GDOP metric”. IEE Proceedings on Radar, Sonar, and Navigation 147(5), 259–264 (2000)
ICD-GPS-200 Interface controll document, ICD-GPS-200, Arinc Research Corporation, 11770 WarnerAve., Suite 210, Fountain Valley, CA (1991)
Gurtner, W.: RINEX: the receiver indipendent exchange format. GPS world 5(7), 49–52 (1994)
Laboratorio di Topografia, University of Perugia, http://labtopo.ing.unipg.it/
Brown, A.K., Olson, P.: Urban/Indoor Navigation using Network Assisted GPS. In: Proceedings of ION 61st Annual Meeting, Cambridge, MA (June 2006)
Davidson, P., Hautamki, J., Collin, J.: Using Low-Cost MEMS 3D Accelerometers and One Gyro to Assist GPS Based Car Navigation System. In: Proceedings of 15th Saint Petersburg International Conference on Integrated Navigation Systems (May 2008)
Di Sorte, D., Femminella, M., Reali, G.: Beacon-based Service Publishing Framework in Multi-service Wi-Fi Hotspots. EURASIP Journal on Wireless Communications and Networking, 1–18 (2007)
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© 2010 ICST Institute for Computer Science, Social Informatics and Telecommunications Engineering
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Cacopardi, S. et al. (2010). WiFi Assisted GPS for Extended Location Services. In: Sithamparanathan, K., Marchese, M., Ruggieri, M., Bisio, I. (eds) Personal Satellite Services. PSATS 2010. Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, vol 43. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-13618-4_14
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DOI: https://doi.org/10.1007/978-3-642-13618-4_14
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-13617-7
Online ISBN: 978-3-642-13618-4
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