Orthogonal Expanded Memory Polynomial Model for Circular Complex Gaussian Processes

Huang, X; Le, AT; Zhang, H; Zhang, JA; Guo, YJ

Orthogonal Expanded Memory Polynomial Model for Circular Complex Gaussian Processes

Huang, X

Le, AT Zhang, H

Zhang, JA Guo, YJ

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Publisher:: IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Publication Type:: Journal Article
Citation:: IEEE Transactions on Signal Processing, 2024, 72, (99), pp. 3287-3302
Issue Date:: 2024-01-01

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Field	Value	Language
dc.contributor.author	Huang, X https://orcid.org/0000-0001-6869-5732
dc.contributor.author	Le, AT
dc.contributor.author	Zhang, H https://orcid.org/0000-0003-1948-3308
dc.contributor.author	Zhang, JA
dc.contributor.author	Guo, YJ
dc.date.accessioned	2024-09-05T09:35:46Z
dc.date.available	2024-09-05T09:35:46Z
dc.date.issued	2024-01-01
dc.identifier.citation	IEEE Transactions on Signal Processing, 2024, 72, (99), pp. 3287-3302
dc.identifier.issn	1053-587X
dc.identifier.issn	1941-0476
dc.identifier.uri	http://hdl.handle.net/10453/180655
dc.description.abstract	This paper proposes an orthogonal expanded memory polynomial (OEMP) model for circular complex Gaussian processes. The basis functions of the OEMP model are constructed from those of the expanded memory polynomial (EMP) model recently derived by expanding the conventional memory polynomial (MP) model for I/Q imbalanced signals, and proved orthogonal to each other thanks to the derived closed-form bivariate distribution moments. In addition to the perfect duality with its power spectral density expression, the OEMP model also demonstrates unique minimum residual power property. It is believed that the OEMP model will be highly beneficial to nonlinearity mitigation for wideband wireless communication systems. Simulation and experimental results obtained from a terahertz system with 4.25 GHz bandwidth and 252 GHz carrier frequency confirm that significant performance improvement can be achieved for digital post-cancellation with low-complexity after applying the proposed OEMP model.
dc.language	English
dc.publisher	IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
dc.relation.ispartof	IEEE Transactions on Signal Processing
dc.relation.isbasedon	10.1109/TSP.2024.3421520
dc.rights	info:eu-repo/semantics/embargoedAccess
dc.subject.classification	Networking & Telecommunications
dc.title	Orthogonal Expanded Memory Polynomial Model for Circular Complex Gaussian Processes
dc.type	Journal Article
utslib.citation.volume	72
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/Strength - GBDTC - Global Big Data Technologies
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/All Manual Groups
pubs.organisational-group	University of Technology Sydney/All Manual Groups/Global Big Data Technologies Research Centre (GBDTC)
utslib.copyright.status	embargoed	*
utslib.copyright.embargo	2026-07-12T00:00:00+1000Z
dc.date.updated	2024-09-05T09:35:41Z
pubs.issue	99
pubs.publication-status	Published
pubs.volume	72
utslib.citation.issue	99

Abstract:

This paper proposes an orthogonal expanded memory polynomial (OEMP) model for circular complex Gaussian processes. The basis functions of the OEMP model are constructed from those of the expanded memory polynomial (EMP) model recently derived by expanding the conventional memory polynomial (MP) model for I/Q imbalanced signals, and proved orthogonal to each other thanks to the derived closed-form bivariate distribution moments. In addition to the perfect duality with its power spectral density expression, the OEMP model also demonstrates unique minimum residual power property. It is believed that the OEMP model will be highly beneficial to nonlinearity mitigation for wideband wireless communication systems. Simulation and experimental results obtained from a terahertz system with 4.25 GHz bandwidth and 252 GHz carrier frequency confirm that significant performance improvement can be achieved for digital post-cancellation with low-complexity after applying the proposed OEMP model.

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http://hdl.handle.net/10453/180655