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   Articles with "sub connected" as a keyword



Hierarchical Energy Efficient Hybrid Precoding for Configurable Sub-Connected MIMO Systems

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recommendations! Published in 2021 at "IEEE Access"

DOI: 10.1109/access.2021.3078434

Abstract: This paper proposed a configurable sub-connected architecture with a framework that dynamically activates the near-optimal subset of antennas and RF chains to implement energy-efficient hybrid precoding in millimeter wave multiple-input multiple-output system. Since the exhaust… read more here.

Keywords: sub connected; energy efficient; energy; hybrid precoding ... See more keywords

Joint Beamforming Designs for Active Reconfigurable Intelligent Surface: A Sub-Connected Array Architecture

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recommendations! 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

Joint SIC-Based Precoding and Sub-Connected Architecture Design for MIMO VLC Systems

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recommendations! Published in 2023 at "IEEE Transactions on Communications"

DOI: 10.1109/tcomm.2022.3231635

Abstract: Densely deployed light emitting diodes (LEDs) typically lead to high spatial correlation in multiple-input multiple-output (MIMO) visible light communication (VLC) systems. Although precoding can effectively alleviate the spatial correlation issue, most existing precoding algorithms require… read more here.

Keywords: based precoding; sub connected; sic based; connected architecture ... See more keywords

Robust Transmission for Energy-Efficient Sub-Connected Active RIS-Assisted Wireless Networks: DRL Versus Traditional Optimization

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

DOI: 10.1109/tgcn.2024.3370691

Abstract: This paper investigates the performance of a sub-connected active reconfigurable intelligent surface (RIS)-assisted communication system under imperfect channel state information (CSI). To ensure reliable transmission, we formulate an optimization problem aimed at maximizing the energy… read more here.

Keywords: sub connected; connected active; energy; ris assisted ... See more keywords

Active RIS in Digital Twin-Based URLLC IoT Networks: Fully-Connected Versus Sub-Connected?

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recommendations! Published in 2024 at "IEEE Transactions on Wireless Communications"

DOI: 10.1109/twc.2024.3391663

Abstract: The substantial power consumption attributed to the active components within fully-connected reconfigurable intelligent surface (RIS) architecture significantly hinders the efficiency and sustainability of DT-enabled MEC networks. To tackle this challenge, we present an innovative sub-connected… read more here.

Keywords: sub connected; active ris; iot; fully connected ... See more keywords