Channel modelling and propagation measurements for a bodyworn 5.2 GHz terminal moving in the indoor environment

Ziri-Castro, Karla and Scanlon, William and Feustle, R. and Evans, Noel (2003) Channel modelling and propagation measurements for a bodyworn 5.2 GHz terminal moving in the indoor environment. In: 12th IEE International Conference on Antennas and Propagation, 31 Mar - 3 April 2003, Exeter, United Kingdom.


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[Abstract]: Proposed applications for broadband wireless local area
networks may include the use of bodyworn or
handportable terminals. The proximity of the user's
body has a significant effect on the radio propagation
characteristics through spatial filtering of the multipath
channel. This paper compares measurements and
simulations of a narrowband 5.2 GHz radio channel
with a fwed transmitter and a bodywom receiver. The
modelling technique was a site-specific ray-tracing
simulator incorporating a modified three-dimensional
radiation pattem of the bodyworn receiver. Two indoor
environments were considered, an 18 m long corridor
and a 42 m* office. The results show that the received
power envelope and local mean values are strongly
dependent. on body shadowing in relation to the direct
ray. In the corridor, 'the predicted non-line-of sight
(NLOS) mean received powers was 13.6 dB lower than
for line-of-sight (LOS). In the office, the predicted
NLOS received power was 5.2 dB lower than LOS. The
measured body shadowing effect was lower: 5.4 dB for
the corridor and 3.8 dB for the office. Further analysis
of level crossing rate and average fade duration showed
that the prediction tool tended to underestimate the
degree of fading. This was attributed to the movement
limitations of the body model used.

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Item Type: Conference or Workshop Item (Commonwealth Reporting Category E) (Paper)
Refereed: Yes
Item Status: Live Archive
Additional Information: Deposited in accordance with the copyright policy of the publisher.
Faculty / Department / School: Historic - Faculty of Engineering and Surveying - Department of Electrical, Electronic and Computer Engineering
Date Deposited: 11 Oct 2007 01:18
Last Modified: 02 Jul 2013 22:48
Uncontrolled Keywords: bodyworn terminals; handportable terminals; portable terminals; radio propagation
Fields of Research : 10 Technology > 1005 Communications Technologies > 100501 Antennas and Propagation
10 Technology > 1005 Communications Technologies > 100510 Wireless Communications

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