Title
The Role Of Path Loss On The Selection Of The Operating Bands Of Uwb Systems
Abstract
We performed a propagation experiment in a modern office building in Rome, Italy. The propagation measurements are based on the use of a vector network analyzer (VNA) over the band 2 - 12 GHz, with a frequency resolution of 5 MHz. We propose a novel analysis of the dependence of path loss laws on the carrier frequency and bandwidth. Our experimental results show that the path loss exponent strongly depends on the carrier frequency. The path loss exponents increase with the increasing carrier frequency for the line-of-sight (LOS) scenarios, while exhibit an opposite behavior for the non-line-of-sight (NLOS) data. We explain this behavior by the frequency dependence of the reflection coefficient of the walls surrounding the transmitter. Indeed, the lowest frequencies (2 - 5 GHz) are reflected, while the highest frequencies (up to 12 GHz) pass through the walls.
Year
DOI
Venue
2004
10.1109/PIMRC.2004.1368828
2004 IEEE 15TH INTERNATIONAL SYMPOSIUM ON PERSONAL, INDOOR AND MOBILE RADIO COMMUNICATIONS, VOLS 1-4, PROCEEDINGS
Keywords
Field
DocType
ultra-wideband technology, path loss model, indoor channel measurements
Non-line-of-sight propagation,Network analyzer (electrical),Transmitter,Telecommunications,Computer science,Real-time computing,Bandwidth (signal processing),Path loss,Carrier signal,Reflection coefficient,Log-distance path loss model,Acoustics
Conference
Citations 
PageRank 
References 
11
1.38
2
Authors
3
Name
Order
Citations
PageRank
Dajana Cassioli19416.08
Annalisa Durantini2307.13
Walter Ciccognani3155.75