Title
A Study on Range - Data Rate Performance of UWB Wireless Communications
Author
TNO Informatie- en Communicatietechnologie
do Nascimento, J.R.V.
Publication year
2007
Abstract
Major envisioned commercial Ultra Wideband (UWB) applications are indoor, nonetheless, the suitability of UWB technology for data communication over longer ranges may also have a relevant role in the outdoor wirelesscommunications. In this thesis work we evaluate and compare the achievable range-datarate performance of a reliable UWB communication link for long ranges, considering anImpulse Radio UWB system and the use of M-ary PAM and M-ary PPM modulations. The freespace, lognormal shadowing and two-ray path loss models are considered. We incorporatethe UWB frequency dependency of two different ground reflection materials as well asdifferent electric field polarizations in the two-ray path loss model. Furthermore, the novelrange-data rate performance analysis, evaluation and results are provided for Time-HoppingUWB Multiple Access asynchronous networks. Practical application is provided for a real lifesensor network considering the studied path loss models.Figures and tables with the achievable range-data rate performance of the UWB link areprovided. Novel results of this research work indicate that, complying with the FCC emissionlimits, a reliable outdoor UWB link can be established by compromising between BER, range,and speed of transmission. Furthermore, Time-Hopping UWB can be used for the physicallayer of different outdoor multiple access sensor networks.
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TNO identifier
464604
Publisher
Instituto Superior Técnico, Universidade Técnica de Lisboa, Lisboa
Bibliographical note
Dissertation Presented to the Instituto Superior Técnico, for obtaining the Degree of Master in Electrical and Computer Engineering, september 2007
Document type
doctoral thesis