Large Scale Spectrum Survey in Rural and Urban Environments within the 50 MHz- 6 GHz Bands
No Thumbnail Available
Date
2016-05-12
Journal Title
Journal ISSN
Volume Title
Publisher
Elsevier- Measurements
Abstract
In-depth spectrum measurement was conducted in rural and urban locations, covering 50 MHz–6 GHz
bands, during the weekdays and weekends. A modified duty cycle metric is presented by introducing a
space variable into the existing metrics available today. An adaptive energy detection threshold technique
was employed, the results indicate the average spectral occupancy of 0.18%, and 5.08% in rural
and urban locations respectively during weekdays and 1.45% on weekends for urban locations.
Furthermore, short and long term temporal variations of the duty cycle for each of the bands were studied,
and it was found that GSM 900 shows significant temporal variation when compared with GSM 1800.
It was also found that the choice of the detection threshold would significantly affect the duty cycle as
GSM 900 and 1800 give exponential decay with increase in detection threshold while TV band shows very
sharp exponential decay which becomes invariant after 85 dBm.
Description
Keywords
Cognitive radio, Duty cycle, Detection threshold, Measurement campaign, Spectrum measurement
Citation
Faruk,et. al.