Digitally-controlled RF self-interference canceller for full-duplex radios. Tamminen, J., Turunen, M., Korpi, D., Huusari, T., Choi, Y., Talwar, S., & Valkama, M. In 2016 24th European Signal Processing Conference (EUSIPCO), pages 783-787, Aug, 2016.
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Paper doi abstract bibtex
Paper doi abstract bibtex This paper addresses the self-interference (SI) cancellation in a full-duplex radio transceiver. In particular, we focus on shared-antenna based full-duplex transceivers where the self-interference coupling channel is always frequency-selective and can also be strongly time-varying depending on the antenna matching characteristics and reflections from the surroundings. A novel digitally-controlled RF self-interference canceller structure is described, being able to process the signals in a frequency-selective manner as well as track adaptively the time-varying SI features, stemming from the fast digital control loop. A complete demonstrator board is developed, reported and measured, incorporating both the RF processing and the digital control processing. Comprehensive RF measurements are then also carried out and reported at 2.4GHz ISM band, evidencing more than 40dBs of active RF cancellation gain up to 80MHz instantaneous waveform bandwidths. Furthermore, real-time self-adaptive tracking features are successfully demonstrated.
@InProceedings{7760355,
author = {J. Tamminen and M. Turunen and D. Korpi and T. Huusari and Y. Choi and S. Talwar and M. Valkama},
booktitle = {2016 24th European Signal Processing Conference (EUSIPCO)},
title = {Digitally-controlled RF self-interference canceller for full-duplex radios},
year = {2016},
pages = {783-787},
abstract = {This paper addresses the self-interference (SI) cancellation in a full-duplex radio transceiver. In particular, we focus on shared-antenna based full-duplex transceivers where the self-interference coupling channel is always frequency-selective and can also be strongly time-varying depending on the antenna matching characteristics and reflections from the surroundings. A novel digitally-controlled RF self-interference canceller structure is described, being able to process the signals in a frequency-selective manner as well as track adaptively the time-varying SI features, stemming from the fast digital control loop. A complete demonstrator board is developed, reported and measured, incorporating both the RF processing and the digital control processing. Comprehensive RF measurements are then also carried out and reported at 2.4GHz ISM band, evidencing more than 40dBs of active RF cancellation gain up to 80MHz instantaneous waveform bandwidths. Furthermore, real-time self-adaptive tracking features are successfully demonstrated.},
keywords = {digital control;interference suppression;radio transceivers;time-varying channels;UHF antennas;UHF measurement;real-time self-adaptive tracking features;instantaneous waveform bandwidths;ISM band;RF measurements;digital control processing;RF processing;complete demonstrator board;antenna matching characteristics;time-varying channel;frequency-selective channel;self-interference coupling channel;shared-antenna based full-duplex transceivers;full-duplex radio transceiver;SI cancellation;digitally-controlled RF self-interference canceller;frequency 2.4 GHz;Radio frequency;Interference cancellation;Process control;Digital control;Baseband;Voltage control;Couplings;self-interference;active RF cancellation;adaptive filtering;digital control;wideband cancellation;self-adaptive systems;self-healing;RF measurements},
doi = {10.1109/EUSIPCO.2016.7760355},
issn = {2076-1465},
month = {Aug},
url = {https://www.eurasip.org/proceedings/eusipco/eusipco2016/papers/1570255804.pdf},
}Downloads: 0
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