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Digital Self-Interference Cancellation in Wireless Co-time and Co-frequency Full-Duplex System

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Abstract

In this paper, we present a new scheme for digital self-interference cancellation in wireless co-time and co-frequency full-duplex system, where a feedback path is added for self-interference cancellation. The signal at the transmit antenna is coupled as the input of the feedback path, and the feedback radio shares the same local oscillator with the receive radio. With the proposed scheme, the phase noise, non-linearity, and quantization noise of the transmitter can be cancelled, and the phase noise of the receiver can be suppressed.

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Acknowledgments

This work was supported by the National Natural Science Foundation of China (No.61471108, No.61271164, and No.61301154) and the National major projects (2014ZX03003001-002 and 2012ZX03003010-003).

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Authors and Affiliations

  1. National Key Laboratory of Science and Technology on Communications, University of Electronic Science and Technology of China, Chengdu, China

    Ying Shen & Youxi Tang

  2. College of Communication Engineering, Chengdu University of Information Technology, Chengdu, China

    Juan Zhou

Authors
  1. Ying Shen
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  2. Juan Zhou
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  3. Youxi Tang
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Correspondence to Juan Zhou.

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Shen, Y., Zhou, J. & Tang, Y. Digital Self-Interference Cancellation in Wireless Co-time and Co-frequency Full-Duplex System. Wireless Pers Commun 82, 2557–2565 (2015). https://doi.org/10.1007/s11277-015-2364-8

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  • DOI: https://doi.org/10.1007/s11277-015-2364-8

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