ON THE USE OF VARIOUS POWER LEVELS TO IMPROVE WIRELESS LAN-BASED POSITIONING - Using Multiple Power Levels With Fingerprinting Algorithms

Hendrik Lemelson, Thomas King, Stephan Kopf, Wolfgang Effelsberg

2007

Abstract

When talking about location-based services, one of the key factors influencing the overall service quality is the positioning accuracy that the system can rely upon. Nowadays, wireless LAN hardware supports the variation of the transmission power in a wide range. In this paper, two novel algorithms suitable for extension of common wireless LAN-based positioning systems are presented. These novel algorithms exploit the additional information that can be gained by using one or more non-standard transmission power levels. Our findings indicate that the overall positioning accuracy and reliability can be increased with such an approach.

References

  1. Bahl, P. and Padmanabhan, V. N. (2000). RADAR: An InBuilding RF-Based User Location and Tracking System. In Proc. of the 19th IEEE InfoCom.
  2. Chen, G. and Kotz, D. (2000). A Survey of ContextAware Mobile Computing Research. Technical Report TR2000-381, Dartmouth College.
  3. Haeberlen, A., Flannery, E., Ladd, A. M., Rudys, A., Wallach, D. S., and Kavraki, L. E. (2004). Practical Robust Localization over Large-Scale 802.11 Wireless Networks. In Proc. of the 10th ACM MobiCom.
  4. Kaplan, E. and Hegarty, C., editors (2005). Understanding GPS: Principles and Applications. Artech House Incorporated, second edition.
  5. King, T., Haenselmann, T., Kopf, S., and Effelsberg, W. (2007). Overhearing the Wireless Interface for 802.11-based Positioning Systems. In Proc. of the 5th IEEE PerCom.
  6. King, T. and Kopf, S. (2007). Loclib - A Location Library. Website: http://www.informatik.unimannheim.de/pi4/lib/projects/loclib/.
  7. King, T., Kopf, S., Haenselmann, T., Lubberger, C., and Effelsberg, W. (2006). COMPASS: A Probabilistic Indoor Positioning System Based on 802.11 and Digital Compasses. In Proc. of the 1st ACM WiNTECH.
  8. Ni, L. M., Liu, Y., Lau, Y. C., and Patil, A. P. (2004). LANDMARC: indoor location sensing using active RFID. Wireless Networks, 10:701-710.
  9. Priyantha, N. B., Chakraborty, A., and Balakrishnan, H. (2000). The Cricket Location-Support System. In Proc. of the 6th ACM MobiCom.
  10. Rappaport, T. S. (2001). Wireless Communications: Principles and Practice. Prentice Hall PTR, second edition.
  11. Want, R., Hopper, A., Falcao, V., and Gibbons, J. (1992). The Active Badge Location System. ACM Transactions on Information Systems, 10(1):91-102.
Download


Paper Citation


in Harvard Style

Lemelson H., King T., Kopf S. and Effelsberg W. (2007). ON THE USE OF VARIOUS POWER LEVELS TO IMPROVE WIRELESS LAN-BASED POSITIONING - Using Multiple Power Levels With Fingerprinting Algorithms . In Proceedings of the Second International Conference on Wireless Information Networks and Systems - Volume 1: WINSYS, (ICETE 2007) ISBN 978-989-8111-14-2, pages 209-215. DOI: 10.5220/0002148802090215


in Bibtex Style

@conference{winsys07,
author={Hendrik Lemelson and Thomas King and Stephan Kopf and Wolfgang Effelsberg},
title={ON THE USE OF VARIOUS POWER LEVELS TO IMPROVE WIRELESS LAN-BASED POSITIONING - Using Multiple Power Levels With Fingerprinting Algorithms},
booktitle={Proceedings of the Second International Conference on Wireless Information Networks and Systems - Volume 1: WINSYS, (ICETE 2007)},
year={2007},
pages={209-215},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0002148802090215},
isbn={978-989-8111-14-2},
}


in EndNote Style

TY - CONF
JO - Proceedings of the Second International Conference on Wireless Information Networks and Systems - Volume 1: WINSYS, (ICETE 2007)
TI - ON THE USE OF VARIOUS POWER LEVELS TO IMPROVE WIRELESS LAN-BASED POSITIONING - Using Multiple Power Levels With Fingerprinting Algorithms
SN - 978-989-8111-14-2
AU - Lemelson H.
AU - King T.
AU - Kopf S.
AU - Effelsberg W.
PY - 2007
SP - 209
EP - 215
DO - 10.5220/0002148802090215