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Quantifying the spectrum occupancy in an outdoor 5 GHz WiFi network with directional antennas

: Rademacher, Michael; Jonas, Karl; Kretschmer, Mathias


Institute of Electrical and Electronics Engineers -IEEE-:
IEEE Wireless Communications and Networking Conference, WCNC 2018 : April 15-18, 2018 in Barcelona, Spain
Piscataway, NJ: IEEE, 2018
ISBN: 978-1-5386-1734-2
ISBN: 978-1-5386-1735-9
Wireless Communications and Networking Conference (WCNC) <2018, Barcelona>
Fraunhofer FIT ()

WiFi-based Long Distance networks are seen as a promising alternative for bringing broadband connectivity to rural areas. A key factor for the profitability of these networks is using license free bands. This work quantifies the current spectrum occupancy in our testbed, which covers rural and urban areas alike. The data mining is conducted on the same WiFi card and in parallel with an operational network. The presented evaluations reveal tendencies for various aspects: occupancy compared to population density, occupancy fluctuations, (joint)-vacant channels, the mean channel vacant duration, different approaches to model/forecast occupancy, and correlations among related interfaces.