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Optical Multipath RF Self-Interference Cancellation Based on Phase Modulation for Full-Duplex Communication

Su, Xinxin, Han, Xiuyou, Fu, Shuanglin, Wang, Shuo, Li, Chao, Tan, Qinggui, Zhu, Ge, Wang, Chao, Wu, Zhenlin, Gu, Yiying, and others. (2020) Optical Multipath RF Self-Interference Cancellation Based on Phase Modulation for Full-Duplex Communication. IEEE Photonics Journal, 12 (4). pp. 1-14. ISSN 1943-0647. (doi:10.1109/JPHOT.2020.3002856) (KAR id:82543)

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https://doi.org/10.1109/JPHOT.2020.3002856

Abstract

Optical multipath RF self-interference cancellation (SIC) based on phase modulation for full-duplex communication is proposed and demonstrated experimentally. Phase modulation is utilized to convert the RF signal into optical domain, in which the time delay tuning, amplitude tuning and phase inversion for multipath RF SIC are completed. The comprehensive theoretical model of the optical multipath RF SIC system is established, and the factors affecting SIC performance including the time delay, amplitude and phase deviations are analyzed. The experimental results verify the feasibility of the proposed scheme for full-duplex communication with the cancellation depth of 26 dB and 28 dB over 100 MHz at central frequency of 6 GHz and 10 GHz, respectively. A figure of merit of the maximum interference to signal of interest ratio is defined to characterize the SOI recovery capability of optical RF SIC system.

Item Type: Article
DOI/Identification number: 10.1109/JPHOT.2020.3002856
Uncontrolled keywords: Full-duplex communication, multipath RF self-interference cancellation, phase modulation
Subjects: Q Science
T Technology
Divisions: Divisions > Division of Computing, Engineering and Mathematical Sciences > School of Engineering and Digital Arts
Depositing User: Chao Wang
Date Deposited: 21 Aug 2020 14:43 UTC
Last Modified: 16 Feb 2021 14:14 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/82543 (The current URI for this page, for reference purposes)
Wang, Chao: https://orcid.org/0000-0002-0454-8079
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