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Integrated Full-Duplex Radios: System Concepts, Implementations, and Experimentation

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Full-Duplex Communications for Future Wireless Networks

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Abstract

This chapter reviews recent research on integrated full-duplex (FD) radio systems using complementary metal oxide semiconductor (CMOS) technology. After a brief review of challenges associated with integrated FD radios, several CMOS FD radio designs, particularly those developed at Columbia University, are discussed with self-interference (SI) suppression at antenna interface, and in RF, analog, and digital domains. This chapter also reviews the system design and implementation of two generations of FD radios developed within the Columbia FlexICoN project (Columbia full-duplex wireless: From integrated circuits to networks (FlexICoN) project, https://flexicon.ee.columbia.edu) using off-the-shelf components and a software-defined radio (SDR) platform. The performance evaluation of these FD radios at the node- and link-level is also reviewed.

Ⓒ Portions of this chapter are reprinted from [2, 3], with permission from IEEE.

Tingjun Chen and Jin Zhou contributed equally to this work. Gil Zussman and Harish Krishnaswamy contributed equally to this work.

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Notes

  1. 1.

    The SI channel here refers to the circulator TX–RX leakage after calibration of the USRP RF front-end.

  2. 2.

    We consider BPSK, QPSK, 16QAM, and 64QAM with coding rates of 1/2, 2/3, and 3/4.

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Acknowledgements

This work was supported in part by NSF grants ECCS-1547406, CNS-1650685, and CNS-1827923, the DARPA RF-FPGA, ACT, and SPAR programs, and two Qualcomm Innovation Fellowships. We thank Mahmood Baraani Dastjerdi, Jelena Diakonikolas, Negar Reiskarimian for their contributions.

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Authors and Affiliations

  1. Columbia University, New York, NY, USA

    Tingjun Chen, Gil Zussman & Harish Krishnaswamy

  2. University of Illinois, Champaign, IL, USA

    Jin Zhou

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  1. Tingjun Chen
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Correspondence to Tingjun Chen .

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Editors and Affiliations

  1. Centre for Wireless Communications, University of Oulu, Oulu, Finland

    Hirley Alves

  2. Unit of Electrical Engineering, Tampere University, Tampere, Finland

    Taneli Riihonen

  3. Department of Electrical and Electronic Engineering, University of Peradeniya, Peradeniya, Sri Lanka

    Himal A. Suraweera

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Chen, T., Zhou, J., Zussman, G., Krishnaswamy, H. (2020). Integrated Full-Duplex Radios: System Concepts, Implementations, and Experimentation. In: Alves, H., Riihonen, T., Suraweera, H. (eds) Full-Duplex Communications for Future Wireless Networks. Springer, Singapore. https://doi.org/10.1007/978-981-15-2969-6_11

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  • DOI: https://doi.org/10.1007/978-981-15-2969-6_11

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