Optical self-interference cancellation system for improved spectrum sensing in cognitive radios

Matthew P. Chang; Paul Richard Prucnal; Yanhua Deng

doi:10.1109/EEEIC.2015.7165538

Optical self-interference cancellation system for improved spectrum sensing in cognitive radios

Matthew P. Chang, Paul Richard Prucnal, Yanhua Deng

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Scopus citations

Abstract

We propose and experimentally demonstrate an optical self-interference cancellation system to enable more efficient spectrum management and sensing in cognitive radios. The optical system is a radio-frequency front-end module, which cancels in-band self-interference, permitting a radio to simultaneously transmit and receive. By cancelling enough self-interference, a cognitive radio can perform continuous spectrum sensing, even while transmitting, to detect the presence of a licensed user or to scan for spectrum white spaces. The system achieves 83 dB of narrowband interference cancellation, and 60 dB of cancellation of a 50 MHz frequency-modulated signal. The center frequency of the optical canceler is freely tunable across the radio frequency spectrum, limited only by the bandwidth of the photodetector and the electro-optic modulators to 10 GHz. The system is modulation-format independent and requires only one piece of hardware to operate across a wide bandwidth.

Original language	English (US)
Title of host publication	2015 IEEE 15th International Conference on Environment and Electrical Engineering, EEEIC 2015 - Conference Proceedings
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	188-191
Number of pages	4
ISBN (Electronic)	9781479979936
DOIs	https://doi.org/10.1109/EEEIC.2015.7165538
State	Published - Jul 22 2015
Event	15th IEEE International Conference on Environment and Electrical Engineering, EEEIC 2015 - Rome, Italy Duration: Jun 10 2015 → Jun 13 2015

Publication series

Name	2015 IEEE 15th International Conference on Environment and Electrical Engineering, EEEIC 2015 - Conference Proceedings

Other

Other	15th IEEE International Conference on Environment and Electrical Engineering, EEEIC 2015
Country	Italy
City	Rome
Period	6/10/15 → 6/13/15

All Science Journal Classification (ASJC) codes

Electrical and Electronic Engineering
Energy Engineering and Power Technology

Access to Document

10.1109/EEEIC.2015.7165538

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Chang, M. P., Prucnal, P. R., & Deng, Y. (2015). Optical self-interference cancellation system for improved spectrum sensing in cognitive radios. In 2015 IEEE 15th International Conference on Environment and Electrical Engineering, EEEIC 2015 - Conference Proceedings (pp. 188-191). [7165538] (2015 IEEE 15th International Conference on Environment and Electrical Engineering, EEEIC 2015 - Conference Proceedings). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/EEEIC.2015.7165538

Chang, Matthew P. ; Prucnal, Paul Richard ; Deng, Yanhua. / Optical self-interference cancellation system for improved spectrum sensing in cognitive radios. 2015 IEEE 15th International Conference on Environment and Electrical Engineering, EEEIC 2015 - Conference Proceedings. Institute of Electrical and Electronics Engineers Inc., 2015. pp. 188-191 (2015 IEEE 15th International Conference on Environment and Electrical Engineering, EEEIC 2015 - Conference Proceedings).

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Chang, MP, Prucnal, PR & Deng, Y 2015, Optical self-interference cancellation system for improved spectrum sensing in cognitive radios. in 2015 IEEE 15th International Conference on Environment and Electrical Engineering, EEEIC 2015 - Conference Proceedings., 7165538, 2015 IEEE 15th International Conference on Environment and Electrical Engineering, EEEIC 2015 - Conference Proceedings, Institute of Electrical and Electronics Engineers Inc., pp. 188-191, 15th IEEE International Conference on Environment and Electrical Engineering, EEEIC 2015, Rome, Italy, 6/10/15. https://doi.org/10.1109/EEEIC.2015.7165538

Optical self-interference cancellation system for improved spectrum sensing in cognitive radios. / Chang, Matthew P.; Prucnal, Paul Richard; Deng, Yanhua.

2015 IEEE 15th International Conference on Environment and Electrical Engineering, EEEIC 2015 - Conference Proceedings. Institute of Electrical and Electronics Engineers Inc., 2015. p. 188-191 7165538 (2015 IEEE 15th International Conference on Environment and Electrical Engineering, EEEIC 2015 - Conference Proceedings).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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Chang MP, Prucnal PR, Deng Y. Optical self-interference cancellation system for improved spectrum sensing in cognitive radios. In 2015 IEEE 15th International Conference on Environment and Electrical Engineering, EEEIC 2015 - Conference Proceedings. Institute of Electrical and Electronics Engineers Inc. 2015. p. 188-191. 7165538. (2015 IEEE 15th International Conference on Environment and Electrical Engineering, EEEIC 2015 - Conference Proceedings). https://doi.org/10.1109/EEEIC.2015.7165538