Wireless communications with user equipment mounted Reconfigurable Intelligent Surfaces

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Detalles Bibliográficos
Publicado en:arXiv.org (Dec 20, 2024), p. n/a
Autor principal: I Zakir Ahmed
Otros Autores: Sadjadpour, Hamid
Publicado:
Cornell University Library, arXiv.org
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Acceso en línea:Citation/Abstract
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022 |a 2331-8422 
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045 0 |b d20241220 
100 1 |a I Zakir Ahmed 
245 1 |a Wireless communications with user equipment mounted Reconfigurable Intelligent Surfaces 
260 |b Cornell University Library, arXiv.org  |c Dec 20, 2024 
513 |a Working Paper 
520 3 |a In traditional Reconfigurable Intelligent Surfaces (RIS) systems, the RIS is mounted on stationary structures like buildings, walls, or posts. They have shown promising results in enhancing the performance of wireless systems like capacity and MSE in poor channel conditions. The traditional RIS is a monolithic structure containing a large number of reflecting elements (passive or active). In this paper, we propose the idea of mounting a small number of RIS elements (usually between 2 to 4 ) on user equipment (UEs) like mobile phones, laptops, and tablets, to name a few. A joint coordinated optimization of phase shifts of all the passive RIS elements on the participating UEs is envisioned to enhance the performance of wireless communication between an intended transmitter and receiver in the MSE sense. Given that the RIS elements are mounted on the UEs, the challenging channel estimation problem with RIS is significantly simplified. For the case when there is a line-of-sight (LOS) channel and with a large number of participating RIS-mounted UEs, the LOS is converted into a multipath-rich-scattering channel even for millimeter wave and Terahertz operating ranges that enable higher spatial multiplexing gains, thereby significantly improving the MSE performance compared to traditional RIS channels. We support the above claims using simulations. 
653 |a Multiplexing 
653 |a Line of sight 
653 |a Communications equipment 
653 |a Performance enhancement 
653 |a Wireless communications 
653 |a Millimeter waves 
653 |a Cell phones 
653 |a Reconfigurable intelligent surfaces 
700 1 |a Sadjadpour, Hamid 
773 0 |t arXiv.org  |g (Dec 20, 2024), p. n/a 
786 0 |d ProQuest  |t Engineering Database 
856 4 1 |3 Citation/Abstract  |u https://www.proquest.com/docview/3148958715/abstract/embedded/ZKJTFFSVAI7CB62C?source=fedsrch 
856 4 0 |3 Full text outside of ProQuest  |u http://arxiv.org/abs/2412.16354