Active RIS Versus Passive RIS: Which Is Superior with the Same Power Budget?
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Communications Letters"
DOI: 10.1109/lcomm.2022.3159525
Abstract: This letter theoretically compares the active reconfigurable intelligent surface (RIS)-aided system with the passive RIS-aided system. For fair comparison, we consider that these two systems have the same overall power budget that can be used… read more here.
Keywords: active ris; passive ris; ris; power ... See more keywords
RIS-Assisted Green Secure Communications: Active RIS or Passive RIS?
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Wireless Communications Letters"
DOI: 10.1109/lwc.2022.3221609
Abstract: Reconfigurable Intelligent Surface (RIS) is one of the promising techniques for 6G wireless communications, and recently has also been shown to be able to improve secure communications. However, there is a “double fading” effect in… read more here.
Keywords: passive ris; secure communications; ris assisted; ris ... See more keywords
Joint Beamforming Designs for Active Reconfigurable Intelligent Surface: A Sub-Connected Array Architecture
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Transactions on Communications"
DOI: 10.1109/tcomm.2022.3212749
Abstract: Reconfigurable intelligent surface (RIS) is regarded as a promising technology with great potential to boost wireless networks. Affected by the “double fading” effect, however, conventional passive RIS cannot bring considerable performance improvement when users are… read more here.
Keywords: reconfigurable intelligent; sub connected; architecture; ris ... See more keywords
Active Reconfigurable Intelligent Surface for Energy Efficiency in MU-MISO Systems
Sign Up to like & getrecommendations! Published in 2023 at "IEEE Transactions on Vehicular Technology"
DOI: 10.1109/tvt.2022.3221720
Abstract: Reconfigurable intelligent surfaces (RISs) are proposed as a promising solution for future green wireless communications, owing to their ability to manipulate signal propagation environments. However, the severe double path-loss in the RIS's cascaded channel limits… read more here.
Keywords: reconfigurable intelligent; active ris; energy; energy efficiency ... See more keywords