Wideband Self-Interference Cancellation for 5G Full-Duplex Radio Using a Near-Field Sensor Array

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Title: Wideband Self-Interference Cancellation for 5G Full-Duplex Radio Using a Near-Field Sensor Array
Authors: Keogh, Brian
Zhu, Anding
Permanent link: http://hdl.handle.net/10197/10538
Date: 31-Aug-2018
Online since: 2019-05-20T12:35:00Z
Abstract: Self-interference cancellation (SIC) is an important consideration for 5G wireless transceiver architectures. If successfully implemented, SIC can double spectral efficiency by allowing for in-band full-duplex operation. The main challenge lies in effective cancellation of the interference that is caused by the transmit signal. This paper presents a wide-band digitally controlled, analogue SIC circuit block employing a spatially adjustable near-field vector sensor. A stochastic perturbation algorithm operating in spatial and frequency domains provides efficient optimisation when used in combination with the hardware configuration. The proposed technique provides 35 dB of radio frequency suppression across a channel bandwidth of 100 MHz centred at 2.1 GHz.
Funding Details: European Commission - European Regional Development Fund
Science Foundation Ireland
Type of material: Conference Publication
Publisher: IEEE
Copyright (published version): 2018 IEEE
Keywords: Self-interference cancellation5G radio architectureFull-DuplexRF FIR filterSICSPSA
DOI: 10.1109/IMWS-5G.2018.8484398
Other versions: http://imws-5g.mtt.org/
Language: en
Status of Item: Not peer reviewed
Is part of: 2018 IEEE MTT-S International Microwave Workshop Series on 5G Hardware and System Technologies (IMWS-5G)
Conference Details: 2018 IEEE MTT-S International Microwave Workshop Series on 5G Hardware and System Technologies (IMWS-5G), University College Dublin, Ireland, 30-31 August 2018
ISBN: 9781538611975
Appears in Collections:Electrical and Electronic Engineering Research Collection

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