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   Articles with "ris assisted" as a keyword



Performance analysis of RIS-assisted 6G vehicular networks with NOMA under diverse channel conditions

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recommendations! Published in 2025 at "Wireless Networks"

DOI: 10.1007/s11276-025-03904-8

Abstract: The evolution of vehicular networks towards sixth-generation (6 G) applications necessitates meeting the stringent requirements of low latency, high spectrum efficiency, and ubiquitous connectivity. This paper proposes leveraging re-configurable intelligent surfaces (RISs) in tandem with… read more here.

Keywords: assisted vehicular; performance; vehicular networks; channel ... See more keywords

RIS-Assisted Wireless System in the Presence of Direct Channel: Channel Statistics and Performance Analysis

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recommendations! Published in 2024 at "IEEE Access"

DOI: 10.1109/access.2024.3499330

Abstract: A reconfigurable intelligent surface (RIS)-aided wireless communication system is considered in this paper, where the transmitter sends data to the receiver via a direct link and the RIS. The phases of the reflecting elements of… read more here.

Keywords: system; performance; channel; ris assisted ... See more keywords

Adaptive Low-Overhead Channel Estimation Tracking in RIS-Assisted Systems

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recommendations! Published in 2025 at "IEEE Access"

DOI: 10.1109/access.2025.3570772

Abstract: Efficient channel estimation is paramount for realizing the performance potential of Reconfigurable Intelligent Surface (RIS)-assisted wireless networks. This study introduces Adaptive Low-Overhead Channel Estimation Tracking (ALOCET), a novel solution to balance estimation accuracy with pilot… read more here.

Keywords: low overhead; estimation; channel; channel estimation ... See more keywords

Joint Hybrid and Passive RIS-Assisted Beamforming for mmWave MIMO Systems Relying on Dynamically Configured Subarrays

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recommendations! Published in 2022 at "IEEE Internet of Things Journal"

DOI: 10.1109/jiot.2022.3142932

Abstract: Reconfigurable intelligent surface (RIS)-assisted millimeter-wave (mmWave) communication systems relying on hybrid beamforming structures are capable of achieving high spectral efficiency at a low hardware complexity and low power consumption. In this article, we propose an… read more here.

Keywords: joint hybrid; relying dynamically; ris assisted; dynamically configured ... See more keywords

Energy-Efficient Multiuser Localization in the RIS-Assisted IoT Networks

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recommendations! Published in 2022 at "IEEE Internet of Things Journal"

DOI: 10.1109/jiot.2022.3176633

Abstract: In various location-based Internet of Things (IoT) services, it is required to localize a large number of energy-limited devices simultaneously and accurately. In order to achieve this goal, a reconfigurable intelligent surface (RIS)-assisted positioning method… read more here.

Keywords: localization; ris assisted; ris; efficient multiuser ... See more keywords

RIS-Assisted Ambient Backscatter Communication for SAGIN IoT

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recommendations! Published in 2023 at "IEEE Internet of Things Journal"

DOI: 10.1109/jiot.2022.3224587

Abstract: The space–air–ground-integrated network (SAGIN) will greatly promote the development of the Internet of Things (IoT). Green IoT will be an important part of SAGIN. Ambient backscatter communication (AmBC) is a potential solution for green SAGIN… read more here.

Keywords: sagin; backscatter; ris assisted; ambc ... See more keywords

Resource and Power Allocation for Sum-Throughput Maximization in RIS-Assisted TDMA Wireless Sensor Networks

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recommendations! Published in 2024 at "IEEE Internet of Things Journal"

DOI: 10.1109/jiot.2024.3390199

Abstract: In this article, we consider a reconfigurable intelligent surface (RIS)-assisted uplink wireless sensor network (WSN) in which the distributed sensors transmit their gathered data to a fusion center (FC) during their specific time slot. The… read more here.

Keywords: sensor; wireless sensor; ris assisted; power ... See more keywords

RIS-Assisted Integration of Communications and Security: Protocol, Prototyping, and Field Trials

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recommendations! Published in 2024 at "IEEE Internet of Things Journal"

DOI: 10.1109/jiot.2024.3390677

Abstract: Reconfigurable intelligent surface (RIS), which can manipulate the wireless environment, has recently been integrated into physical-layer key generation (PKG) systems to establish randomness symmetric keys in static environments. However, few studies have jointly considered the… read more here.

Keywords: integration; field trials; communication; security ... See more keywords

Hybrid RIS-Assisted Communications: Optimal Allocation Under a Total Power Constraint

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

DOI: 10.1109/jiot.2024.3490185

Abstract: In this letter, we investigate the wireless communication system assisted by hybrid intelligent reflecting surface (RIS), which is composed of both passive and active elements integrated reflection-type amplifiers. Different from conventional hybrid RIS system, the… read more here.

Keywords: amplification factor; total power; hybrid ris; ris ... See more keywords

Outage Evaluation for STAR-RIS-Assisted Satellite-AAV-Terrestrial NOMA Networks With Imperfect CSI

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

DOI: 10.1109/jiot.2025.3542485

Abstract: Due to some transmission delays and channel estimation errors, it is always difficult to acquire perfect channel state information (CSI) in practical communications. Therefore, in this study, taking the practical scenario of imperfect CSI into… read more here.

Keywords: randomly located; star ris; ris assisted; imperfect csi ... See more keywords

RIS-Assisted NOMA-Based Resource Allocation for Indoor IoT Applications: A HealthCare Perspective

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

DOI: 10.1109/jiot.2025.3557379

Abstract: With the accelerated progression of future-generation technologies, the network is anticipated to achieve enhanced reliability, adaptability, and energy efficiency. High-frequency transmission is prone to coverage issues due to blockages, compromising the reliability of real-time healthcare… read more here.

Keywords: resource; ris assisted; iot applications; noma based ... See more keywords