Generalized Analog Least Mean Square Loop for Self-Interference Cancellation in In-Band Full-Duplex Communications

Xu, K; Le, AT; Huang, X; Ryu, HG

Generalized Analog Least Mean Square Loop for Self-Interference Cancellation in In-Band Full-Duplex Communications

Xu, K

Le, AT Huang, X

Ryu, HG

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Publisher:: Institute of Electrical and Electronics Engineers (IEEE)
Publication Type:: Journal Article
Citation:: IEEE Transactions on Wireless Communications, 2024, PP, (99), pp. 1-1
Issue Date:: 2024-01-01

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Field	Value	Language
dc.contributor.author	Xu, K https://orcid.org/0000-0002-0433-9891
dc.contributor.author	Le, AT
dc.contributor.author	Huang, X https://orcid.org/0000-0001-6869-5732
dc.contributor.author	Ryu, HG
dc.date.accessioned	2025-01-17T00:07:30Z
dc.date.available	2025-01-17T00:07:30Z
dc.date.issued	2024-01-01
dc.identifier.citation	IEEE Transactions on Wireless Communications, 2024, PP, (99), pp. 1-1
dc.identifier.issn	1536-1276
dc.identifier.issn	1558-2248
dc.identifier.uri	http://hdl.handle.net/10453/183787
dc.description.abstract	This paper introduces a novel method for radio frequency (RF) self-interference (SI) cancellation in in-band full-duplex (IBFD) communication systems using a generalized analog least mean square (GALMS) loop. Conventional research in this area has predominantly focused on employing the tapped delay line (DL) structure to process the RF transmitted signal. The proposed GALMS loop utilizes a filter bank applied on the baseband transmitted signal to avoid the limitation of the conventional tapped DL adaptive filters, which require tapped spacing to satisfy the Nyquist principle. We utilize frequency domain representation and steady-state analysis to derive the modeling error and residual SI power of the proposed structure. Notably, the GALMS loop incorporating an allpass filter bank can achieve the same level of SI cancellation as the conventional DL structure with a significantly reduced number of taps. Simulations are conducted to validate the efficiency of the proposed GALMS loop and prove the theoretical findings.
dc.language	en
dc.publisher	Institute of Electrical and Electronics Engineers (IEEE)
dc.relation	http://purl.org/au-research/grants/arc/DP200101532
dc.relation.ispartof	IEEE Transactions on Wireless Communications
dc.relation.isbasedon	10.1109/TWC.2024.3515282
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	0805 Distributed Computing, 0906 Electrical and Electronic Engineering, 1005 Communications Technologies
dc.subject.classification	Networking & Telecommunications
dc.subject.classification	4006 Communications engineering
dc.subject.classification	4008 Electrical engineering
dc.subject.classification	4606 Distributed computing and systems software
dc.title	Generalized Analog Least Mean Square Loop for Self-Interference Cancellation in In-Band Full-Duplex Communications
dc.type	Journal Article
utslib.citation.volume	PP
utslib.for	0805 Distributed Computing
utslib.for	0906 Electrical and Electronic Engineering
utslib.for	1005 Communications Technologies
pubs.organisational-group	University of Technology Sydney
pubs.organisational-group	University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	University of Technology Sydney/Faculty of Engineering and Information Technology/School of Electrical and Data Engineering
pubs.organisational-group	University of Technology Sydney/UTS Groups
pubs.organisational-group	University of Technology Sydney/UTS Groups/Global Big Data Technologies Centre (GBDTC)
utslib.copyright.status	open_access	*
dc.date.updated	2025-01-17T00:07:29Z
pubs.issue	99
pubs.publication-status	Published
pubs.volume	PP
utslib.citation.issue	99

Abstract:

This paper introduces a novel method for radio frequency (RF) self-interference (SI) cancellation in in-band full-duplex (IBFD) communication systems using a generalized analog least mean square (GALMS) loop. Conventional research in this area has predominantly focused on employing the tapped delay line (DL) structure to process the RF transmitted signal. The proposed GALMS loop utilizes a filter bank applied on the baseband transmitted signal to avoid the limitation of the conventional tapped DL adaptive filters, which require tapped spacing to satisfy the Nyquist principle. We utilize frequency domain representation and steady-state analysis to derive the modeling error and residual SI power of the proposed structure. Notably, the GALMS loop incorporating an allpass filter bank can achieve the same level of SI cancellation as the conventional DL structure with a significantly reduced number of taps. Simulations are conducted to validate the efficiency of the proposed GALMS loop and prove the theoretical findings.

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http://hdl.handle.net/10453/183787