| dc.contributor.author | Nwufo, Chukwuemeka | |
| dc.contributor.author | Sun, Yichuang | |
| dc.contributor.author | Simpson, Oluyomi | |
| dc.date.accessioned | 2024-04-16T09:45:00Z | |
| dc.date.available | 2024-04-16T09:45:00Z | |
| dc.date.issued | 2023-11-30 | |
| dc.identifier.citation | Nwufo , C , Sun , Y & Simpson , O 2023 , Secure Energy-Efficient Multi-RIS-aided SWIPT Networks . in 2023 IEEE Virtual Conference on Communications (VCC) . Institute of Electrical and Electronics Engineers (IEEE) , NY, USA , 2023 IEEE Virtual Conference on Communications (VCC) , Beijing , China , 28/11/23 . https://doi.org/10.1109/VCC60689.2023.10474823 | |
| dc.identifier.citation | conference | |
| dc.identifier.isbn | 979-8-3503-1881-4 | |
| dc.identifier.isbn | 979-8-3503-1880-7 | |
| dc.identifier.uri | http://hdl.handle.net/2299/27761 | |
| dc.description | © 2023, IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. This is the accepted manuscript version of a conference paper which has been published in final form at https://doi.org/10.1109/VCC60689.2023.10474823 | |
| dc.description.abstract | This paper considers a SWIPT network in which an access point (AP) serves multiple information decoding receivers(IDRs) and energy harvesting receivers (EHRs) assisted by several dynamically controlled reconfigurable intelligent surfaces (RIS).An energy efficiency (EE) maximization problem is formulated by the joint optimization of the transmit beamforming, artificial noise (AN) covariance, the passive beamforming at the RISs, and the RIS on/off control mechanism. Due to the non-convexity of theproblem, semi-definite relaxation (SDR) is utilized to simplify the problem. A practical solution based on alternation optimization is proposed to obtain the suboptimal solution. Furthermore, a low complexity greedy search method is proposed for the RIS on/off control. Simulation results show that the EE is significantly enhanced by employing dynamic control of multiple RIS with AN. In addition, the effect of increasing the circuit power and the number of RISs can be harmful to the system-wide EE. | en |
| dc.format.extent | 6 | |
| dc.format.extent | 1529679 | |
| dc.language.iso | eng | |
| dc.publisher | Institute of Electrical and Electronics Engineers (IEEE) | |
| dc.relation.ispartof | 2023 IEEE Virtual Conference on Communications (VCC) | |
| dc.title | Secure Energy-Efficient Multi-RIS-aided SWIPT Networks | en |
| dc.contributor.institution | School of Physics, Engineering & Computer Science | |
| dc.contributor.institution | Department of Engineering and Technology | |
| dc.contributor.institution | Centre for Engineering Research | |
| dc.contributor.institution | Centre for Future Societies Research | |
| dc.contributor.institution | Communications and Intelligent Systems | |
| rioxxterms.versionofrecord | 10.1109/VCC60689.2023.10474823 | |
| rioxxterms.type | Other | |
| herts.preservation.rarelyaccessed | true | |
