Digital FMCW for ultrawideband spectrum sensing

Adnan Ahmad Cheema; Sana Salous

doi:10.1002/2016RS006083

Digital FMCW for ultrawideband spectrum sensing

Adnan Ahmad Cheema, Sana Salous

Research output: Contribution to journal › Article › peer-review

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Abstract

An ultrawideband digital frequency-modulated continuous wave sensing engine is proposed as an alternative technique for cognitive radio applications. A dual-band demonstrator capable of sensing 750 MHz bandwidth in 204.8 μs is presented. Its performance is illustrated from both bench tests and from real-time measurements of the GSM 900 band and the 2.4 GHz wireless local area network (WLAN) band. The measured sensitivity and noise figure values are —90 dBm for a signal-to-noise ratio margin of at least 10 dB and ∼13–14 dB, respectively. Data were collected over 24 h and were analyzed by using the energy detection method. The obtained results show the time variability of occupancy, and considerable sections of the spectrum are unoccupied. In addition, unlike the cyclic temporal variations of spectrum occupancy in the GSM 900 band, the detected variations in the 2.4 GHz WLAN band have an impulsive nature.

Original language	English
Pages (from-to)	1413-1420
Journal	Radio Science
Volume	51
Issue number	8
Early online date	2 Aug 2016
DOIs	https://doi.org/10.1002/2016RS006083
Publication status	Published (in print/issue) - 12 Dec 2016

Keywords

FMCW
Spectrum sensing

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10.1002/2016RS006083

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title = "Digital FMCW for ultrawideband spectrum sensing",

abstract = "An ultrawideband digital frequency-modulated continuous wave sensing engine is proposed as an alternative technique for cognitive radio applications. A dual-band demonstrator capable of sensing 750 MHz bandwidth in 204.8 μs is presented. Its performance is illustrated from both bench tests and from real-time measurements of the GSM 900 band and the 2.4 GHz wireless local area network (WLAN) band. The measured sensitivity and noise figure values are —90 dBm for a signal-to-noise ratio margin of at least 10 dB and ∼13–14 dB, respectively. Data were collected over 24 h and were analyzed by using the energy detection method. The obtained results show the time variability of occupancy, and considerable sections of the spectrum are unoccupied. In addition, unlike the cyclic temporal variations of spectrum occupancy in the GSM 900 band, the detected variations in the 2.4 GHz WLAN band have an impulsive nature.",

keywords = "FMCW, Spectrum sensing",

author = "Cheema, {Adnan Ahmad} and Sana Salous",

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doi = "10.1002/2016RS006083",

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T1 - Digital FMCW for ultrawideband spectrum sensing

AU - Cheema, Adnan Ahmad

AU - Salous, Sana

PY - 2016/12/12

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N2 - An ultrawideband digital frequency-modulated continuous wave sensing engine is proposed as an alternative technique for cognitive radio applications. A dual-band demonstrator capable of sensing 750 MHz bandwidth in 204.8 μs is presented. Its performance is illustrated from both bench tests and from real-time measurements of the GSM 900 band and the 2.4 GHz wireless local area network (WLAN) band. The measured sensitivity and noise figure values are —90 dBm for a signal-to-noise ratio margin of at least 10 dB and ∼13–14 dB, respectively. Data were collected over 24 h and were analyzed by using the energy detection method. The obtained results show the time variability of occupancy, and considerable sections of the spectrum are unoccupied. In addition, unlike the cyclic temporal variations of spectrum occupancy in the GSM 900 band, the detected variations in the 2.4 GHz WLAN band have an impulsive nature.

AB - An ultrawideband digital frequency-modulated continuous wave sensing engine is proposed as an alternative technique for cognitive radio applications. A dual-band demonstrator capable of sensing 750 MHz bandwidth in 204.8 μs is presented. Its performance is illustrated from both bench tests and from real-time measurements of the GSM 900 band and the 2.4 GHz wireless local area network (WLAN) band. The measured sensitivity and noise figure values are —90 dBm for a signal-to-noise ratio margin of at least 10 dB and ∼13–14 dB, respectively. Data were collected over 24 h and were analyzed by using the energy detection method. The obtained results show the time variability of occupancy, and considerable sections of the spectrum are unoccupied. In addition, unlike the cyclic temporal variations of spectrum occupancy in the GSM 900 band, the detected variations in the 2.4 GHz WLAN band have an impulsive nature.

KW - FMCW

KW - Spectrum sensing

UR - https://pure.ulster.ac.uk/en/publications/digital-fmcw-for-ultrawideband-spectrum-sensing

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DO - 10.1002/2016RS006083

M3 - Article

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VL - 51

SP - 1413

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JO - Radio Science

JF - Radio Science

IS - 8

ER -

Digital FMCW for ultrawideband spectrum sensing

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Keywords

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