Low-complexity nonlinear self-interference cancellation for full-duplex radios

Min Soo Sim, Minkeun Chung, Dong Ku Kim, Chan Byoung Chae

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

Full-duplex radio, expected to double the spectral efficiency, is one of the promising technologies for fifth generation (5G) communication. To overcome self-interference, which is a main obstacle to full-duplex radio, various self-interference cancellation (SIC) techniques have been developed. For digital SIC, the nonlinearity of a transmitter occurred by a power amplifier is a main bottleneck. The nonlinear SIC methods proposed in prior work are not feasible due to high computational complexity, or the cost of extra hardwares. In this paper, we propose the precalibration method that linearizes the transmitter, and applies only linear SIC. Numerical results confirm that the proposed SIC method shows 43 dB cancellation performance while the existing method shows only 18 dB in fast fading channels.

Original languageEnglish
Title of host publication2016 IEEE Globecom Workshops, GC Wkshps 2016 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781509024827
DOIs
Publication statusPublished - 2016 Jan 1
Event2016 IEEE Globecom Workshops, GC Wkshps 2016 - Washington, United States
Duration: 2016 Dec 42016 Dec 8

Other

Other2016 IEEE Globecom Workshops, GC Wkshps 2016
CountryUnited States
CityWashington
Period16/12/416/12/8

Fingerprint

Radio interference
Radio receivers
Transmitters
interference
radio
Power amplifiers
Fading channels
Computational complexity
Hardware
Communication
Costs
hardware
efficiency
communication
costs
performance

All Science Journal Classification (ASJC) codes

  • Communication
  • Computer Networks and Communications
  • Electrical and Electronic Engineering

Cite this

Sim, M. S., Chung, M., Kim, D. K., & Chae, C. B. (2016). Low-complexity nonlinear self-interference cancellation for full-duplex radios. In 2016 IEEE Globecom Workshops, GC Wkshps 2016 - Proceedings [7848956] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/GLOCOMW.2016.7848956
Sim, Min Soo ; Chung, Minkeun ; Kim, Dong Ku ; Chae, Chan Byoung. / Low-complexity nonlinear self-interference cancellation for full-duplex radios. 2016 IEEE Globecom Workshops, GC Wkshps 2016 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2016.
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Sim, MS, Chung, M, Kim, DK & Chae, CB 2016, Low-complexity nonlinear self-interference cancellation for full-duplex radios. in 2016 IEEE Globecom Workshops, GC Wkshps 2016 - Proceedings., 7848956, Institute of Electrical and Electronics Engineers Inc., 2016 IEEE Globecom Workshops, GC Wkshps 2016, Washington, United States, 16/12/4. https://doi.org/10.1109/GLOCOMW.2016.7848956

Low-complexity nonlinear self-interference cancellation for full-duplex radios. / Sim, Min Soo; Chung, Minkeun; Kim, Dong Ku; Chae, Chan Byoung.

2016 IEEE Globecom Workshops, GC Wkshps 2016 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2016. 7848956.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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N2 - Full-duplex radio, expected to double the spectral efficiency, is one of the promising technologies for fifth generation (5G) communication. To overcome self-interference, which is a main obstacle to full-duplex radio, various self-interference cancellation (SIC) techniques have been developed. For digital SIC, the nonlinearity of a transmitter occurred by a power amplifier is a main bottleneck. The nonlinear SIC methods proposed in prior work are not feasible due to high computational complexity, or the cost of extra hardwares. In this paper, we propose the precalibration method that linearizes the transmitter, and applies only linear SIC. Numerical results confirm that the proposed SIC method shows 43 dB cancellation performance while the existing method shows only 18 dB in fast fading channels.

AB - Full-duplex radio, expected to double the spectral efficiency, is one of the promising technologies for fifth generation (5G) communication. To overcome self-interference, which is a main obstacle to full-duplex radio, various self-interference cancellation (SIC) techniques have been developed. For digital SIC, the nonlinearity of a transmitter occurred by a power amplifier is a main bottleneck. The nonlinear SIC methods proposed in prior work are not feasible due to high computational complexity, or the cost of extra hardwares. In this paper, we propose the precalibration method that linearizes the transmitter, and applies only linear SIC. Numerical results confirm that the proposed SIC method shows 43 dB cancellation performance while the existing method shows only 18 dB in fast fading channels.

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Sim MS, Chung M, Kim DK, Chae CB. Low-complexity nonlinear self-interference cancellation for full-duplex radios. In 2016 IEEE Globecom Workshops, GC Wkshps 2016 - Proceedings. Institute of Electrical and Electronics Engineers Inc. 2016. 7848956 https://doi.org/10.1109/GLOCOMW.2016.7848956