Spectrum Occupancy Measurements and Analysis in 2.4 GHz WLAN

Cheema, Adnan Ahmad; Salous, Sana

doi:10.3390/electronics8091011

Spectrum Occupancy Measurements and Analysis in 2.4 GHz WLAN

Cheema, Adnan Ahmad; Salous, Sana

Authors

Adnan Ahmad Cheema

Professor Sana Salous sana.salous@durham.ac.uk
Professor

Abstract

High time resolution spectrum occupancy measurements and analysis are presented for 2.4 GHz WLAN signals. A custom-designed wideband sensing engine records the received power of signals, and its performance is presented to select the decision threshold required to define the channel state (busy/idle). Two sets of measurements are presented where data were collected using an omni-directional and directional antenna in an indoor environment. Statistics of the idle time windows in the 2.4 GHz WLAN are analyzed using a wider set of distributions, which require fewer parameters to compute and are more practical for implementation compared to the widely-used phase type or Gaussian mixture distributions. For the omni-directional antenna, it was found that the lognormal and gamma distributions can be used to model the behavior of the idle time windows under different network traffic loads. In addition, the measurements show that the low time resolution and angle of arrival affect the statistics of the idle time windows

Citation

Cheema, A. A., & Salous, S. (2019). Spectrum Occupancy Measurements and Analysis in 2.4 GHz WLAN. Electronics, 8(9), Article 1011. https://doi.org/10.3390/electronics8091011

Journal Article Type	Article
Acceptance Date	Sep 7, 2019
Online Publication Date	Sep 10, 2019
Publication Date	Sep 30, 2019
Deposit Date	Oct 25, 2019
Publicly Available Date	Oct 25, 2019
Journal	Electronics
Publisher	MDPI
Peer Reviewed	Peer Reviewed
Volume	8
Issue	9
Article Number	1011
DOI	https://doi.org/10.3390/electronics8091011

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