Advanced Self-interference Cancellation and Multiantenna Techniques for Full-Duplex Radios

Dani Korpi; Sathya Venkatasubramanian; Taneli Riihonen; Lauri Anttila; Strasdosky Otewa; Clemens Icheln; Katsuyuki Haneda; Sergei Tretyakov; Mikko Valkama; Risto Wichman

arXiv · 1401.3331

Advanced Self-interference Cancellation and Multiantenna Techniques for Full-Duplex Radios

Dani Korpi·Sathya Venkatasubramanian·Taneli Riihonen·Lauri Anttila·Strasdosky Otewa·Clemens Icheln·Katsuyuki Haneda·Sergei Tretyakov·Mikko Valkama·Risto Wichman

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Abstract

In an in-band full-duplex system, radios transmit and receive simultaneously in the same frequency band at the same time, providing a radical improvement in spectral efficiency over a half-duplex system. However, in order to design such a system, it is necessary to mitigate the self-interference due to simultaneous transmission and reception, which seriously limits the maximum transmit power of the full-duplex device. Especially, large differences in power levels in the receiver front-end sets stringent requirements for the linearity of the transceiver electronics. We present an advanced architecture for a compact full-duplex multiantenna transceiver combining antenna design with analog and digital cancellation, including both linear and nonlinear signal processing.

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Dani Korpi, Sathya Venkatasubramanian, Taneli Riihonen, Lauri Anttila, Strasdosky Otewa, Clemens Icheln, Katsuyuki Haneda, Sergei Tretyakov, Mikko Valkama, Risto Wichman. 2014-01-14. Advanced Self-interference Cancellation and Multiantenna Techniques for Full-Duplex Radios. https://arxiv.org/abs/1401.3331

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