articleIEEE Vehicular Technology MagazineJul 11, 2024Closed access

Reconfigurable Intelligent Surfaces for 6G: Emerging Hardware Architectures, Applications, and Open Challenges

EBErtuğrul BaşarGCGeorge C. AlexandropoulosYLYuanwei LiuQWQingqing WuSJShi Jin

National and Kapodistrian University of Athens · Queen Mary University of London · +5 more institutions

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Abstract

Reconfigurable intelligent surfaces (RISs) are rapidly gaining prominence in the realm of 5G-advanced and predominantly 6G mobile networks, offering a revolutionary approach to optimizing wireless communications. This article delves into the intricate world of the RIS technology, exploring its diverse hardware architectures and the resulting versatile operating modes. These include RISs with signal reception and processing units, sensors, amplification units, transmissive capability, multiple stacked components, and dynamic metasurface antennas (DMAs). Furthermore, we shed light on emerging RIS applications, such as index and reflection modulation, noncoherent modulation, next-generation multiple access…

Citation impact

155
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FWCI
29.82
Percentile
100%
References
38
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8

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Topics
Keywords
  • Embedded system
  • Computer architecture
  • Computer science
  • Field-programmable gate array
  • Engineering
  • Computer hardware
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