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

[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.
Depositing User: epEditor USQ
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 (FOR2008): 10 Technology > 1005 Communications Technologies > 100501 Antennas and Propagation
10 Technology > 1005 Communications Technologies > 100510 Wireless Communications
URI: http://eprints.usq.edu.au/id/eprint/3006

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