Advances in Radio Science, 2005 Abstract. Ultra-Wideband (UWB) communication systems and Multi-Input-Multi-Output (MIMO) techniques rank among the few emerging key technologies in wireless communications. For that reason the marriage of these two complementary approaches should deserve attention.
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Joint Hybrid and Passive RIS-Assisted Beamforming for mmWave MIMO Systems Relying on Dynamically Configured Subarrays [PDF]
IEEE Internet of Things Journal, 2022 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.
Chenghao Feng +3 more
semanticscholar +1 more source
New perspective on single-radiator multiple-port antennas for adaptive beamforming applications. [PDF]
PLoS ONE, 2017 One of the most challenging problems in recent antenna engineering fields is to achieve highly reliable beamforming capabilities in an extremely restricted space of small handheld devices.
Gangil Byun, Hosung Choo
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IEEE Access, 2022 The goal of this paper is to evaluate the performance of an adaptive beamforming approach in fifth-generation millimeter-wave multicellular networks, where massive multiple-input multiple-output configurations are employed in all active base stations of ...
Spyros Lavdas +5 more
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Reconfigurable Intelligent Surface Assisted UAV Communication: Joint Trajectory Design and Passive Beamforming [PDF]
IEEE Wireless Communications Letters, 2019 Thanks to the line-of-sight (LoS) transmission and flexibility, unmanned aerial vehicles (UAVs) effectively improve the throughput of wireless networks.
Sixian Li +4 more
semanticscholar +1 more source
Beamforming Design for Downlink Non-Orthogonal Multiple Access Systems
IEEE Access, 2018 This paper investigates the beamforming design for multiple-input single-output nonorthogonal multiple access (NOMA) downlink systems. The NOMA beamforming design is formulated as a weighted sum rate maximization (WSRM) problem with decoding order ...
Fusheng Zhu +4 more
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Robust wideband beamforming [PDF]
Proceedings of the IEEE 2010 National Aerospace & Electronics Conference, 2010 Robust wideband beamforming with a real-time array testbed will be studied in this paper. For the practical consideration of uncertainty, channel impulse responses or channel transform functions of RF chains can not be obtained exactly due to the limitation of sounding and calibration procedure.
Hu, Zhen +10 more
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A Robust Maximum Likelihood Distortionless Response Beamformer based on a Complex Generalized Gaussian Distribution [PDF]
arXiv, 2021 For multichannel speech enhancement, this letter derives a robust maximum likelihood distortionless response beamformer by modeling speech sparse priors with a complex generalized Gaussian distribution, where we refer to as the CGGD-MLDR beamformer. The proposed beamformer can be regarded as a generalization of the minimum power distortionless response
arxiv
Hybrid Beamforming for Reconfigurable Intelligent Surface based Multi-User Communications: Achievable Rates With Limited Discrete Phase Shifts [PDF]
IEEE Journal on Selected Areas in Communications, 2019 Reconfigurable intelligent surfaces (RISs) have drawn considerable attention from the research community recently. RISs create favorable propagation conditions by controlling the phase shifts of reflected waves at the surface, thereby enhancing wireless ...
Boya Di +5 more
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Learning-Based Predictive Beamforming for Integrated Sensing and Communication in Vehicular Networks [PDF]
IEEE Journal on Selected Areas in Communications, 2021 This paper investigates the integrated sensing and communication (ISAC) in vehicle-to-infrastructure (V2I) networks. To realize ISAC, an effective beamforming design is essential which however, highly depends on the availability of accurate channel ...
Chang Liu +6 more
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