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Experimental Results For the Propagation of Outdoor IEEE802.11 Links

  • WiFi-based Long Distance (WiLD) networks have emerged as a promising alternative technology approach for providing Internet in rural areas. An important factor in network planning of these wireless networks is estimating the path loss. In this work, we present various propagation models we found suitable for point-to-point (P2P) operation in the WiFi frequency bands. We conducted outdoor experiments with commercial offthe- shelf (COTS) hardware in our testbed made of 7 different long-distance links ranging from 450 m to 10.3 km and a mobile measurement station. We found that for short links with omni-directional antennas ground-reflection is a measurable phenomenon. For longer links, we show that either FSPL or the Longley-Rice model provides accurate results for certain links. We conclude that a good site survey is needed to exclude influences not included in the propagation models.

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Document Type:Conference Object
Author:Michael Rademacher, Markus Kessel, Karl Jonas
Parent Title (Multiple languages):Mobilkommunikation - Technologien und Anwendungen. Vorträge der 21. ITG-Fachtagung, 11.-12. Mai 2016 in Osnabrück. ITG-Fachbericht, Bd. 263
First Page:32
Last Page:36
Publisher:VDE Verlag
Place of publication:Berlin
Publishing Institution:Hochschule Bonn-Rhein-Sieg
Date of first publication:2016/05/11
Keyword:Directional Antenna; IEEE802.11; Long-Distance WiFi; Longley-Rice; Propagation; Two-Ray; WiLD
Departments, institutes and facilities:Fachbereich Informatik
Dewey Decimal Classification (DDC):0 Informatik, Informationswissenschaft, allgemeine Werke / 00 Informatik, Wissen, Systeme / 004 Datenverarbeitung; Informatik
Entry in this database:2016/05/30
Licence (Multiple languages):License LogoIn Copyright (Urheberrechtsschutz)