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   Articles with "beam alignment" as a keyword



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Initial Access & Beam Alignment for mmWave and Terahertz Communications

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recommendations! Published in 2022 at "IEEE Access"

DOI: 10.1109/access.2022.3161951

Abstract: The initial access in Millimeter wave (mmWave) 5G communications is very challenging and time consuming. In general, mmWave and terahertz communications require the use of directional antennas to seek narrow beams. However, due to this… read more here.

Keywords: alignment; initial access; terahertz; beam alignment ... See more keywords

Environment-Aware Beam Probing Codebook Design for Two-Timescale Beam Alignment in RIS-Assisted Communication Systems

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recommendations! Published in 2025 at "IEEE Signal Processing Letters"

DOI: 10.1109/lsp.2024.3495589

Abstract: Reconfigurable intelligent surfaces (RISs) have paved the way for addressing the blockage issue via reshaping the propagation environment. However, given the passive nature of RIS and the mobility of users, optimal directional beam pairs among… read more here.

Keywords: environment; two timescale; beam; beam alignment ... See more keywords

Codebook Design for Beam Alignment in Millimeter Wave Communication Systems

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recommendations! Published in 2017 at "IEEE Transactions on Communications"

DOI: 10.1109/tcomm.2017.2730878

Abstract: Owing to abundant spectrum resources, millimeter wave (mmwave) communication promises to provide Gbps data rates, which, however, may be restricted by large path-loss. Thus, antenna arrays are commonly used along with beam alignment (BA) as… read more here.

Keywords: training codebook; millimeter wave; codebook design; beam alignment ... See more keywords

FALP: Fast Beam Alignment in mmWave Systems With Low-Resolution Phase Shifters

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recommendations! Published in 2019 at "IEEE Transactions on Communications"

DOI: 10.1109/tcomm.2019.2941490

Abstract: Millimeter wave (mmWave) systems can enable high data rates if the link between the transmitting and receiving radios is configured properly. Fast configuration of mmWave links, however, is challenging due to the use of large… read more here.

Keywords: resolution; phase shifters; beam; beam alignment ... See more keywords
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Intelligent Vehicle Network Routing With Adaptive 3D Beam Alignment for mmWave 5G-Based V2X Communications

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recommendations! Published in 2021 at "IEEE Transactions on Intelligent Transportation Systems"

DOI: 10.1109/tits.2020.2973859

Abstract: 5G-based millimeter Waves (mmWave) systems have the prospective of enabling $>1Gbps$ communications in the Intelligent Transportation Systems (ITS). ITS relies on vehicle-to-everything (V2X) communications to share information among vehicles. However, the V2X Communications via existing… read more here.

Keywords: vehicle; v2x communications; beam; beam alignment ... See more keywords

Adaptive Beam Search for Initial Beam Alignment in Millimetre-Wave Communications

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recommendations! Published in 2022 at "IEEE Transactions on Vehicular Technology"

DOI: 10.1109/tvt.2022.3164533

Abstract: In this correspondence, we propose an adaptive beam search algorithm to solve the initial beam alignment problem in millimetre-wave communications, where there is neither prior knowledge on the instantaneous channel fading status nor the fading… read more here.

Keywords: beam; adaptive beam; beam search; beam alignment ... See more keywords

Beam Alignment for Non-Stationary Environments Using a Novel Time-Varying Structured Bandit

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recommendations! Published in 2025 at "IEEE Transactions on Vehicular Technology"

DOI: 10.1109/tvt.2024.3509953

Abstract: In this paper, we study beam alignment which is effective in non-stationary environments. Specifically, we first present a novel multi-armed bandit method, time-varying structured bandits, and then, propose an adaptive beam alignment algorithm based on… read more here.

Keywords: non stationary; beam; time varying; beam alignment ... See more keywords

User Scheduling and Beam Alignment in mmWave Networks With a Large Number of Mobile Users

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recommendations! Published in 2021 at "IEEE Transactions on Wireless Communications"

DOI: 10.1109/twc.2021.3074700

Abstract: In this paper, we study an optimal user scheduling with minimum beam alignment overhead in millimeter wave networks. The problem is posed as constrained Markov decision process (CMDP) with the goal of minimizing the average… read more here.

Keywords: tex math; inline formula; beam; user scheduling ... See more keywords

Compressive Sensing-Based Beam Alignment Schemes for Time-Varying Millimeter-Wave Channels

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

DOI: 10.1109/twc.2022.3205702

Abstract: This paper considers the implementation of compressive sensing (CS) approaches for beam alignment (BA) in multiuser millimeter wave (mmWave) MIMO systems. We particularly consider wideband time-varying channels in the practical low SNR regime. We examine… read more here.

Keywords: time; based beam; millimeter wave; time varying ... See more keywords

Learning-Based Beam Alignment for Uplink mmWave UAVs

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

DOI: 10.1109/twc.2022.3206714

Abstract: Unmanned aerial vehicles (UAVs) are the emerging vital components of millimeter wave (mmWave) wireless systems. Accurate beam alignment is essential for efficient beam based mmWave communications of UAVs with base stations (BSs). Conventional beam sweeping… read more here.

Keywords: beam; framework; uavs learning; learning based ... See more keywords

Computer Vision Aided mmWave Beam Alignment in V2X Communications

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recommendations! Published in 2022 at "IEEE Transactions on Wireless Communications"

DOI: 10.1109/twc.2022.3213541

Abstract: Visual information, captured for example by cameras, can effectively reflect the sizes and locations of the environmental scattering objects, and thereby can be used to infer communications parameters like propagation directions, receiver powers, as well… read more here.

Keywords: beam; computer vision; communications computer; beam alignment ... See more keywords