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PROJECT TITLE :

Recent advances in antenna design and interference cancellation algorithms for in-band full duplex relays

ABSTRACT:

In-band full-duplex relays transmit and receive simultaneously at the identical center frequency, hence offering enhanced spectral efficiency for relay deployment. In order to deploy such full-duplex relays, it's necessary to efficiently mitigate the inherent self-interference stemming from the sturdy transmit signal coupling to the sensitive receive chain. In this article, we gift novel state-of-the-art antenna solutions in addition to digital self-interference cancellation algorithms for compact MIMO fullduplex relays, specifically targeted for reduced-value deployments in local space networks. The presented antenna style builds on resonant wavetraps and is shown to provide passive isolations on the order of 60???seventy dB. We have a tendency to additionally discuss and present advanced digital cancellation solutions, beyond classical linear processing, specifically tailored against nonlinear distortion of the facility amplifier when operating shut to saturation. Measured results from an entire demonstrator system, integrating antennas, RF cancellation, and nonlinear digital cancellation, also are presented, evidencing close to a hundred dB of overall self-interference suppression. The reported results indicate that building and deploying compact full-duplex MIMO relays is already technologically feasible.


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