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UWB Positioning Systsem Design: Selection of Modulation and Multiple Access Schemes

Published online by Cambridge University Press:  10 December 2007

Hui Yu*
Affiliation:
(University of Leeds)
Enrique Aguado
Affiliation:
(University of Leeds)
Gary Brodin
Affiliation:
(University of Leeds)
John Cooper
Affiliation:
(University of Leeds)
David Walsh
Affiliation:
(University of Leeds)
Hal Strangeways
Affiliation:
(University of Leeds)
*

Abstract

In densely-populated cities or indoor environments, limited visibility to satellites and severe multipath effects significantly affect the accuracy and reliability of satellite-based positioning systems. To meet the needs of “seamless navigation” in these challenging environments an advanced terrestrial positioning system is under development. This system is based upon Ultra-Wideband (UWB) technology, which is a promising candidate for this application due to good time domain resolution and immunity to multipath. This paper presents a detailed analysis of two key aspects of the UWB signal design that will allow it to be used as the basis of such a high performance positioning system: the modulation scheme and the multiple access technique. These two aspects are evaluated in terms of spectral efficiency and synchronisation performance over multipath channels. Thus this paper identifies optimal modulation and multiple access techniques for a long range, high performance terrestrial positioning system using UWB.

Type
Research Article
Copyright
Copyright © The Royal Institute of Navigation 2007

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References

REFERENCES

Di Benedetto, M. G. and Giancola, G. (2004). Understanding Ultra Wide Band Radio fundamentals. Prentice Hall PTR.Google Scholar
Di Benedetto, M. G., Nardis, L. D., Junk, M. and Giancola, G. (2005). (UWB)2: uncoordinated, wireless, baseborn, medium access control for UWB communication networks. Mobile Networks and Applications special issue on WLAN Optimization at the MAC and Network Levels.CrossRefGoogle Scholar
Di Benedetto, M. G. and Vojcic, B. R. (2003). Ultra Wide Band Wireless Communications: A Tutorial. Journal of Communications and Networks. 5(4).CrossRefGoogle Scholar
Durisi, G. and Benedetto, S. (2003). Performance evaluation and comparison of different modulation schemes for UWB multiaccess systems. Proceedings of IEEE International Conference on Communications (ICC). 3, 21872191.CrossRefGoogle Scholar
Federal Communication Commission (2002). In the matter of Revision of the Commission's Rules Regarding Ultra-Wideband Transmission Systems, First Report and Order.Google Scholar
Gezici, S., Tian, Z., Giannakis, G. B., Kobayashi, H., Molisch, A. F., Poor, H. V. and Sahinoglu, Z. (2005). Localization via ultra-wideband radios: a look at positioning aspects for future sensor networks. Signal Processing Magazine, IEEE, 22(4), 7084.CrossRefGoogle Scholar
Ghavami, M., Michael, L. B. and Kohno, R. (2004). Ultra wideband signals and systems in communication engineering. John Wiley & Sons, Ltd.CrossRefGoogle Scholar
Kailas, A. and Gubner, J. A. (2004). Performance Measures of a UWB Multiple-Access System: DS/CDMA versus TH/PPM. Proceedings of the Forty-Second Annual Allerton Conference on Communication, Control, and Computing.Google Scholar
Kissick, W. A., Mineta, N. Y. and Rohde, G. L. (2001). The temporal and spectral characteristics of ultrawideband signals, NTIA Report 01-383.Google Scholar
Molisch, A. F., Foerster, J. R. and Pendergrass, M. (2003). Channel models for ultrawideband personal area networks. IEEE Personal Communications, 10(6), 1421.Google Scholar
Proakis, J. G. (2001). Digital Communications, 4th ed. McGraw-Hill.Google Scholar
Qiu, R. C., Liu, H. P. and Shen, X. M. (2005). Ultra-wideband for multiple access communications. Communications Magazine, IEEE, 43(2), 8087.CrossRefGoogle Scholar
Retscher, G. (2007). Test and Integration of Location Sensors for a Multi-sensor Personal Navigator. The Journal of Navigation, 60(1), 107117.CrossRefGoogle Scholar
Roberts, R. (2003). Xtremespectrum CFP document, http://grouper.ieee.org/groups/802./15/pub/2003/Jul03/.Google Scholar
Roy, S., Foerster, J. R., Somayazulu, V. S. and Leeper, D. G. (2004). Ultrawideband radio design: the promise of high-speed, short-range wireless connectivity. Proceedings of the IEEE. 92(2), 295311.CrossRefGoogle Scholar
Sayed, A. H., Tarighat, A., et al. (2005). Network-based wireless location: challenges faced in developing techniques for accurate wireless location information. Signal Processing Magazine, IEEE 22(4), 2440.CrossRefGoogle Scholar
Scholtz, R. (1993). Multiple access with time-hopping impulse modulation. Proceedings of IEEE Military Communications Conference, 2, 447450.CrossRefGoogle Scholar
Sheng, H. S.Orlik, P., et al. (2003). On the spectral and power requirements for Ultra-wideband transmission. Proceedings of IEEE International Conference on Communications. 1, 738742.CrossRefGoogle Scholar
Sklar, B. (1998). Digital communications: fundamentals and applications, Prentice-Hall International.Google Scholar
Somayazulu, V. S. (2002). Multiple access performance in UWB systems using time hopping vs. direct sequence spreading. Proceedings of IEEE Wireless Communications and Networking Conference (WCNC), 2, 522525.Google Scholar
Urkowitz, H. (1983). Signal Theory and Random Processes. Artech House.Google Scholar
Win, M. Z. and Scholtz, R. A. (1998). On the Robustness of Ultra-Wide Bandwidth Signals in Dense Multipath Environments. IEEE Communications Letters. 2(2).Google Scholar
Yu, H., Brodin, G., Cooper, J., Walsh, D. and Strangeways, H. (2006). Long-range UWB signal design for urban and indoor navigation. Proceedings of European Navigation Conference (ENC).Google Scholar
Zhuang, W. H., Shen, X. M. and Bi, Q. (2003). Ultra-wideband wireless communications. Wirel. Commun. Mob. Comput., 3(6), 663685.CrossRefGoogle Scholar