Reconfigurable Intelligent Surface-Based Quadrature Reflection Modulation
| Autor: | Fangjiong Chen, Marco Di Renzo, Shaoe Lin, Miaowen Wen |
|---|---|
| Přispěvatelé: | South China University of Technology [Guangzhou] (SCUT), Centre National de la Recherche Scientifique (CNRS), Laboratoire des signaux et systèmes (L2S), CentraleSupélec-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Université Paris-Saclay |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
010302 applied physics
Beamforming Information transfer Computer science business.industry 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Signal [SPI.TRON]Engineering Sciences [physics]/Electronics Modulation 0103 physical sciences Electronic engineering Reflection (physics) Wireless Radio frequency Transceiver 0210 nano-technology business |
| Zdroj: | IEEE International Conference on Communications IEEE International Conference on Communications, Jun 2021, Montreal, Canada. ⟨10.1109/icc42927.2021.9500782⟩ ICC |
| DOI: | 10.1109/icc42927.2021.9500782⟩ |
| Popis: | International audience; Reflection modulation based on reconfigurable intelligent surface (RIS) is considered to be a promising information transfer mechanism that conveys information by reconfiguring incident electromagnetic waves without using radio frequency chains. Existing reflection modulation schemes propose to convey additional information by manipulating the ON/OFF states of reflecting elements, which underuse the potential of the RIS. In this paper, we first propose a new reflection modulation scheme, called RIS-based quadrature reflection modulation (RIS-QRM), to achieve joint passive beamforming and information transfer for RIS-aided single-input single-output wireless communications by assuming that the direct link between the transceivers is blocked. We then extend the RIS-QRM scheme to the multiple-input single-output setting with the direct link between transceivers being taken into account. In this case, an optimization problem is formulated to jointly optimize the active beamforming and the phase shifts of the RIS in order to improve the received signal power at the user. Computer simulation results corroborate the effectiveness of the RIS-QRM scheme. It is shown that in contrast to ON/OFF-based schemes, the RIS-QRM scheme is able to improve the error performance of the additional bits delivered by the RIS without deteriorating that of the bits carried by the constellation symbols. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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