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Design and Implementation of MIMO Transmission through Reconfigurable Intelligent Surface

Tang, W; Dai, JY; Zheng Chen, M; Wong, KK; Li, X; Zhao, X; Jin, S; ... Cui, TJ; + view all (2020) Design and Implementation of MIMO Transmission through Reconfigurable Intelligent Surface. In: IEEE Workshop on Signal Processing Advances in Wireless Communications, SPAWC. IEEE: Atlanta, GA, USA. Green open access

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Abstract

By the ability to periodically change the reflection coefficients of the unit cells of the reconfigurable intelligent surface (RIS), RIS-empowered wireless transmitter has emerged as an attractive paradigm that can achieve information modulation and transmission in a cost-effective and energy-efficient manner. However, only the phase electromagnetic response of the RISs can be flexibly manipulated in most cases, which significantly limits the transmission rate of RIS-based transmitters. In this paper, RIS-based quadrature amplitude modulation (QAM) and multiple-input multiple-output (MIMO) transmission are designed to improve the communication rate of RIS-based transmitter. In addition, our proposed method of achieving RIS-based MIMO-QAM is proved to be robust with the discrete phase shift of the RIS. Furthermore, a prototype is implemented to perform real-time RIS-based MIMO-QAM transmission over the air, which practically validates the proposed approach

Type: Proceedings paper
Title: Design and Implementation of MIMO Transmission through Reconfigurable Intelligent Surface
Event: 2020 IEEE 21st International Workshop on Signal Processing Advances in Wireless Communications (SPAWC)
ISBN-13: 9781728154787
Open access status: An open access version is available from UCL Discovery
DOI: 10.1109/SPAWC48557.2020.9154245
Publisher version: http://dx.doi.org/10.1109/SPAWC48557.2020.9154245
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng
URI: https://discovery.ucl.ac.uk/id/eprint/10111898
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