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
Multiuser MISO PS-SWIPT Systems: Active or Passive RIS?
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Wireless Communications Letters"
DOI: 10.1109/lwc.2022.3187671
Abstract: Reconfigurable intelligent surface (RIS)-based communication networks promise to improve channel capacity and energy efficiency. However, the promised capacity gains could be negligible for passive RISs because of the double pathloss effect. Active RISs can overcome… read more here.
Keywords: passive ris; power; miso swipt; multiuser miso ... 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
Beamforming Optimization for Hybrid Active-Passive RIS Assisted Wireless Communications: A Rate-Maximization Perspective
Sign Up to like & getrecommendations! Published in 2024 at "IEEE Transactions on Communications"
DOI: 10.1109/tcomm.2024.3384951
Abstract: Reconfigurable intelligent surface (RIS) has evolved into a promising approach to significantly improve both spectral and energy efficiencies of wireless communications. Different from the traditional fully-passive and fully-active RISs, a novel hybrid RIS composed of… read more here.
Keywords: passive ris; ris; active passive; rate maximization ... See more keywords
Distributed Hybrid Active-Passive RIS-Assisted THz Wireless Systems: Performance Analysis and Optimization
Sign Up to like & getrecommendations! Published in 2025 at "IEEE Transactions on Communications"
DOI: 10.1109/tcomm.2024.3450791
Abstract: In this paper, we propose distributed hybrid active-passive reconfigurable intelligent surfaces (H-RIS) for Terahertz (THz) wireless communication systems in the presence of hardware impairments and $\alpha -\mu $ small-scale fading. At first, the end-to-end channel… read more here.
Keywords: passive ris; thz wireless; distributed hybrid; hybrid active ... See more keywords
Secure mmWave MIMO Networks Employing Hybrid Active-Passive RIS
Sign Up to like & getrecommendations! Published in 2025 at "IEEE Transactions on Communications"
DOI: 10.1109/tcomm.2024.3490495
Abstract: By combining the benefits of passive reflecting and active relay, the hybrid active-passive reconfigurable intelligent surfaces (RIS) (HRIS) architecture can overcome the double path loss and limited performance gains of the conventional passive RIS. In… read more here.
Keywords: hris; passive ris; secure mmwave; hybrid active ... See more keywords
Hybrid Active-Passive RIS Empowered Secure Communications: Joint Architecture Design and Beamforming Optimization
Sign Up to like & getrecommendations! Published in 2025 at "IEEE Transactions on Communications"
DOI: 10.1109/tcomm.2024.3519525
Abstract: Reconfigurable intelligent surface (RIS) has recently emerged as a promising solution to significantly enhance the security of wireless communication systems. By combining the advantages of the conventional fully-active and fully-passive RISs, a novel hybrid active-passive… read more here.
Keywords: dynamic hybrid; passive ris; hybrid ris; hybrid active ... See more keywords