Measurements and Characterization of Ultra Wideband Propagation Channels in a Passenger-Car Compartment

Ultra wideband (UWB) signal propagation was measured and characterized in comparison with narrowband in a passenger-car compartment, to accommodate a design of new wireless devices for the safety and comfort of passengers. Spatial distributions of UWB and narrowband path gain, delay profiles, and de...

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Bibliographic Details
Published in2006 IEEE Ninth International Symposium on Spread Spectrum Techniques and Applications pp. 228 - 232
Main Author Kobayashi, T.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.08.2006
Subjects
Antenna measurements
Bandwidth
Fading
Frequency measurement
intracar LAN
Local area networks
Narrowband
propagation
Receiving antennas
Transmitting antennas
ultra wideband
Ultra wideband antennas
Ultra wideband technology
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Summary:Ultra wideband (UWB) signal propagation was measured and characterized in comparison with narrowband in a passenger-car compartment, to accommodate a design of new wireless devices for the safety and comfort of passengers. Spatial distributions of UWB and narrowband path gain, delay profiles, and delay spreads within the compartment were derived from frequency-domain responses (from 3.1 to 10.6 GHz) measured with a vector network analyzer. Whereas narrowband channels resulted in a number of dead spots (deep fading points), UWB yielded none, though some frequency dispersion was inevitable. Fading depth versus occupied bandwidth was also derived, which indicated superiority of UWB over narrowband systems from the viewpoint of link budget. Comparison with two other environments was also made in the received energy contained in a given number of multipath components
ISBN:0780397797
9780780397798
ISSN:1943-7439
DOI:10.1109/ISSSTA.2006.311768