0000000000314036

AUTHOR

Zhongyu Wang

0000-0001-6481-3295

showing 4 related works from this author

Distributed Resource Allocation for Energy Efficiency in OFDMA Multicell Networks with Wireless Power Transfer

2019

In this paper, an energy-efficient resource allocation problem is investigated for the wireless power transfer (WPT)-enabled OFDMA multicell networks. In the considered system, multiple base stations (BSs) with a large number of antennas are responsible to provide WPT in the downlink, and the users can recycle and utilize the received energy for uplink data transmission. The role of BS is to execute WPT; thus, there are no data transmissions in the downlink. A time-division protocol is considered to divide the time of downlink WPT and uplink wireless information transfer into separate time slots. With the objective to improve the energy efficiency, we propose the time, subcarrier, and power…

Optimization problemComputer Networks and CommunicationsComputer sciencesubcarrier allocationenergiatehokkuusDistributed computingwireless power transfer02 engineering and technologyData_CODINGANDINFORMATIONTHEORYSubcarrierNonlinear programmingantenna selectionBase stationTelecommunications link0202 electrical engineering electronic engineering information engineeringComputer Science::Networking and Internet ArchitectureWirelessElectrical and Electronic Engineeringvoimansiirtoenergy efficiencyComputer Science::Information Theoryta213business.industryComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKStime allocation020206 networking & telecommunicationspower allocationChannel state informationResource allocationbusinesslangattomat verkotEfficient energy use
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Energy efficient and distributed resource allocation for wireless powered OFDMA multi-cell networks

2017

In this paper, we investigate the energy efficient resource allocation problem for the wireless powered OFDMA multi-cell networks. In the considered system, the users who have data to transmit in the uplink can only be empowered by the wireless power obtained from multiple base stations (BSs) with a large scale of multiple antennas in the downlink. A time division protocol is considered to divide the time of wireless power transfer (WPT) in the downlink and wireless information transfer (WIT) in the uplink into separate time slot. With the objective to improve the energy efficiency (EE) of the system, we propose the antenna selection, time allocation, subcarrier and power allocation schemes…

Wi-Fi arrayenergiatehokkuusComputer scienceresource allocationwireless power transferenergiansiirtoresursointiData_CODINGANDINFORMATIONTHEORY02 engineering and technologyantenna selectionBase station0203 mechanical engineeringTelecommunications linkComputer Science::Networking and Internet Architecture0202 electrical engineering electronic engineering information engineeringWirelessRadio resource managementenergy efficiencyComputer Science::Information Theoryta213Channel allocation schemesbusiness.industrytime allocationComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS020206 networking & telecommunications020302 automobile design & engineeringMulti-user MIMOResource allocationADMMbusinesslangattomat verkotComputer network2017 15th International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks (WiOpt)
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Energy efficient optimisation for large‐scale multiple‐antenna system with WPT

2018

In this study, an energy-efficient optimisation scheme for a large-scale multiple-antenna system with wireless power transfer (WPT) is presented. In the considered system, the user is charged by a base station with a large number of antennas via downlink WPT and then utilises the received power to carry out uplink data transmission. Novel antenna selection, time allocation and power allocation schemes are presented to optimise the energy efficiency of the overall system. In addition, the authors also consider channel state information cannot be perfectly obtained when designing the resource allocation schemes. The non-linear fractional programming-based algorithm is utilised to address the …

Computer science020206 networking & telecommunications020302 automobile design & engineering02 engineering and technologyComputer Science ApplicationsNonlinear programmingBase station0203 mechanical engineeringChannel state informationTelecommunications link0202 electrical engineering electronic engineering information engineeringElectronic engineeringResource allocationWireless power transferElectrical and Electronic EngineeringAntenna (radio)Computer Science::Information TheoryEfficient energy useIET Communications
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Energy efficient optimisation for large-scale multiple-antenna system with WPT

2018

In this study, an energy-efficient optimisation scheme for a large-scale multiple-antenna system with wireless power transfer (WPT) is presented. In the considered system, the user is charged by a base station with a large number of antennas via downlink WPT and then utilises the received power to carry out uplink data transmission. Novel antenna selection, time allocation and power allocation schemes are presented to optimise the energy efficiency of the overall system. In addition, the authors also consider channel state information cannot be perfectly obtained when designing the resource allocation schemes. The non-linear fractional programming-based algorithm is utilised to address the …

antennijärjestelmätwireless networksantenna systemsoptimointienergiatehokkuusoptimisationsähkönsiirtolangattomat verkottransmission of electricityenergy efficiencyComputer Science::Information Theory
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