User Cooperation in Wireless-Powered Backscatter Communication Networks

Lyu, B; Hoang, DT; Yang, Z

User Cooperation in Wireless-Powered Backscatter Communication Networks

Lyu, B Hoang, DT

Yang, Z

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Publication Type:: Journal Article
Citation:: IEEE Wireless Communications Letters, 2019, 8 (2), pp. 632 - 635
Issue Date:: 2019-04-01

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Field	Value	Language
dc.contributor.author	Lyu, B	en_US
dc.contributor.author	Hoang, DT https://orcid.org/0000-0002-9528-0863	en_US
dc.contributor.author	Yang, Z	en_US
dc.date.available	2021-04-01T18:02:46Z
dc.date.issued	2019-04-01	en_US
dc.identifier.citation	IEEE Wireless Communications Letters, 2019, 8 (2), pp. 632 - 635	en_US
dc.identifier.issn	2162-2337	en_US
dc.identifier.uri	http://hdl.handle.net/10453/133764
dc.description.abstract	© 2012 IEEE. In this letter, we introduce new user-cooperation schemes for wireless devices in a wireless-powered backscatter communication network with the aim to improve communication and energy efficiency for the whole network. In particular, we consider two types of wireless devices which can support different communication modes, i.e., backscatter and harvest-then-transmit, and they can cooperate to deliver the information to the access point. To improve energy transmission efficiency for the devices, energy beamforming is deployed at the power beacon. We then formulate the weighted sum-rate maximization problem by jointly optimizing time schedule, power allocation, and energy beamforming. Due to the non-convex issue of the optimization problem, we employ the variable substitutions and semidefinite relaxation techniques to obtain the optimal solution. Simulation results show that the proposed cooperation framework can significantly improve the communication efficiency compared with non-cooperation approach.	en_US
dc.relation.ispartof	IEEE Wireless Communications Letters	en_US
dc.relation.isbasedon	10.1109/LWC.2018.2890642	en_US
dc.rights	info:eu-repo/semantics/openAccess
dc.title	User Cooperation in Wireless-Powered Backscatter Communication Networks	en_US
dc.type	Journal Article
utslib.citation.volume	2	en_US
utslib.citation.volume	8	en_US
utslib.for	0805 Distributed Computing	en_US
utslib.for	1005 Communications Technologies	en_US
utslib.for	0906 Electrical and Electronic Engineering	en_US
pubs.embargo.period	Not known	en_US
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/Strength - GBDTC - Global Big Data Technologies
utslib.copyright.status	open_access	*
pubs.issue	2	en_US
pubs.publication-status	Published	en_US
pubs.volume	8	en_US

Abstract:

© 2012 IEEE. In this letter, we introduce new user-cooperation schemes for wireless devices in a wireless-powered backscatter communication network with the aim to improve communication and energy efficiency for the whole network. In particular, we consider two types of wireless devices which can support different communication modes, i.e., backscatter and harvest-then-transmit, and they can cooperate to deliver the information to the access point. To improve energy transmission efficiency for the devices, energy beamforming is deployed at the power beacon. We then formulate the weighted sum-rate maximization problem by jointly optimizing time schedule, power allocation, and energy beamforming. Due to the non-convex issue of the optimization problem, we employ the variable substitutions and semidefinite relaxation techniques to obtain the optimal solution. Simulation results show that the proposed cooperation framework can significantly improve the communication efficiency compared with non-cooperation approach.

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http://hdl.handle.net/10453/133764