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   Articles with "double ris" as a keyword



Multiobjective Joint Design of Finite-Resolution RISs and Downlink Beamforming for Double-RIS-Assisted IoT Networks

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recommendations! Published in 2025 at "IEEE Internet of Things Journal"

DOI: 10.1109/jiot.2025.3575455

Abstract: This article investigates the downlink of an Internet-of-Things (IoT) network with a base station serving multiple IoT devices (IoTDs) with the assistance of two far-apart reconfigurable intelligent surfaces (RISs). We propose joint design of the… read more here.

Keywords: riss; double ris; joint design; ris assisted ... See more keywords

Deep Learning-Based Channel Estimation for Double-RIS Aided Massive MIMO System

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recommendations! Published in 2022 at "IEEE Wireless Communications Letters"

DOI: 10.1109/lwc.2022.3217294

Abstract: Reconfigurable Intelligent Surface (RIS) is considered as an energy-efficient solution for future wireless communication networks due to its fast and low-cost configuration. In this letter, we consider the estimation of cascaded channels in a double-RIS… read more here.

Keywords: system; ris aided; attention; estimation ... See more keywords

Double-RIS Assisted Cooperative Spectrum Sensing for Cognitive Radio Networks

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recommendations! Published in 2025 at "IEEE Wireless Communications Letters"

DOI: 10.1109/lwc.2025.3541318

Abstract: This letter investigates a double-reconfigurable intelligent surface (RIS) assisted cooperative spectrum sensing (CSS) system. We formulate the phase shift optimization problems of the two RISs to maximize the cooperative sensing performance for two CSS schemes,… read more here.

Keywords: assisted cooperative; cooperative spectrum; double ris; spectrum sensing ... See more keywords

Cooperative Beamforming for Double-RIS Assisted CoMP Systems

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recommendations! Published in 2024 at "IEEE Transactions on Green Communications and Networking"

DOI: 10.1109/tgcn.2024.3393554

Abstract: Energy efficiency (EE) has become a key performance indicator in designing future wireless networks. In this regard, we propose a novel two reconfigurable intelligent surfaces (RISs) assisted coordinated multipoint (CoMP) network, where two RISs cooperate… read more here.

Keywords: beamforming double; cooperative beamforming; double ris; beamforming ... See more keywords

Beamforming Design for Cooperative Double-RIS Aided mmWave MU-MIMO Communications

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recommendations! Published in 2025 at "IEEE Transactions on Green Communications and Networking"

DOI: 10.1109/tgcn.2024.3427126

Abstract: This research delves into the design of collaborative beamforming for millimeter-wave (mmWave) multi-user multiple-input multiple-output (MU-MIMO) communications, which takes advantage of double reconfigurable intelligent surfaces (RISs) for enhanced signal transmission. The core objective is to… read more here.

Keywords: beamforming design; transmit beamforming; double ris; mimo communications ... See more keywords