Multi-user beamforming on intelligent reflecting surface and networks

Liu, Yihong (2022) Multi-user beamforming on intelligent reflecting surface and networks. PhD thesis, University of Glasgow.

Abstract

Full abstract available: pages i-iii.

A new type of retrofitted low-cost material is recently proposed and made it possible to control (or program) part of the wireless channel around us. It is called the intelligent reflecting surface (IRS), also named reconfigurable intelligent surface (RIS) or metasurface. The metamaterial composed surface can realize selective EM properties by integrating artificially designed electronic elements that can be controlled by processors (e.g. field programmable gate array (FPGA)). Therefore, the wireless channel is controllable with such IRS posting on the ceiling and wall. Specifically, this functionality is realized by controlling the excitation and phase of each electronic element on the surface. The phase and amplitude of the EM wave impinging on the surface can be reflected in a designed manner of EM wave’s superposition. From this view, the wireless transmission can be enhanced by focusing the signal power while mitigating the interference power.

• Item Type: Thesis (PhD)
• Qualification Level: Doctoral
• Subjects: T Technology > T Technology (General)
• Colleges/Schools: College of Science and Engineering > School of Engineering > Systems Power and Energy
• Supervisor's Name: Zhang, Professor Lei and Imran, Professor Ali
• Date of Award: 2022
• Depositing User: Theses Team
• Unique ID: glathesis:2022-83324
• Copyright: Copyright of this thesis is held by the author.
• Date Deposited: 22 Dec 2022 09:47
• Last Modified: 22 Dec 2022 10:06
• Thesis DOI: 10.5525/gla.thesis.83324
• URI: https://theses.gla.ac.uk/id/eprint/83324

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