Beamforming Design for Novel Relay-Assisted Multi-User Multi-Tag Symbiotic Radios

Fang, Z; Wu, Z; Ni, W; Wang, X; Hossain, E

Beamforming Design for Novel Relay-Assisted Multi-User Multi-Tag Symbiotic Radios

Fang, Z Wu, Z Ni, W

Wang, X Hossain, E

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Publisher:: IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Publication Type:: Journal Article
Citation:: IEEE Wireless Communications Letters, 2023, 12, (12), pp. 2253-2257
Issue Date:: 2023-12-01

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Field	Value	Language
dc.contributor.author	Fang, Z
dc.contributor.author	Wu, Z
dc.contributor.author	Ni, W https://orcid.org/0000-0002-4933-594X
dc.contributor.author	Wang, X
dc.contributor.author	Hossain, E
dc.date.accessioned	2024-04-06T00:54:04Z
dc.date.available	2024-04-06T00:54:04Z
dc.date.issued	2023-12-01
dc.identifier.citation	IEEE Wireless Communications Letters, 2023, 12, (12), pp. 2253-2257
dc.identifier.issn	2162-2337
dc.identifier.issn	2162-2345
dc.identifier.uri	http://hdl.handle.net/10453/177510
dc.description.abstract	This letter considers a novel relay-assisted, multi-user multi-tag uplink symbiotic radio system, in which a relay node forwards multiple users' signals to a base station (BS), meanwhile powering multiple backscatter tags. We put forth a new joint transmit and receive beamforming design problem to minimize the relay's transmit power while satisfying the signal-to-interference-plus-noise ratio (SINR) constraints of both the primary users and the tags. An alternating optimization algorithm based on semi-definite programming (SDP) and zero-forcing is proposed to solve this non-convex power minimization problem. The proposed approach is also extended to jointly optimize the transmit/receive beamforming to maximize the minimal SINR of the tags under a given relay power budget. Numerical results show that the proposed beamforming designs significantly outperform the benchmarks.
dc.language	English
dc.publisher	IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
dc.relation.ispartof	IEEE Wireless Communications Letters
dc.relation.isbasedon	10.1109/LWC.2023.3317440
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0805 Distributed Computing, 0906 Electrical and Electronic Engineering, 1005 Communications Technologies
dc.subject.classification	4006 Communications engineering
dc.subject.classification	4009 Electronics, sensors and digital hardware
dc.subject.classification	4606 Distributed computing and systems software
dc.title	Beamforming Design for Novel Relay-Assisted Multi-User Multi-Tag Symbiotic Radios
dc.type	Journal Article
utslib.citation.volume	12
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
utslib.copyright.status	closed_access	*
dc.date.updated	2024-04-06T00:54:03Z
pubs.issue	12
pubs.publication-status	Published
pubs.volume	12
utslib.citation.issue	12

Abstract:

This letter considers a novel relay-assisted, multi-user multi-tag uplink symbiotic radio system, in which a relay node forwards multiple users' signals to a base station (BS), meanwhile powering multiple backscatter tags. We put forth a new joint transmit and receive beamforming design problem to minimize the relay's transmit power while satisfying the signal-to-interference-plus-noise ratio (SINR) constraints of both the primary users and the tags. An alternating optimization algorithm based on semi-definite programming (SDP) and zero-forcing is proposed to solve this non-convex power minimization problem. The proposed approach is also extended to jointly optimize the transmit/receive beamforming to maximize the minimal SINR of the tags under a given relay power budget. Numerical results show that the proposed beamforming designs significantly outperform the benchmarks.

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http://hdl.handle.net/10453/177510