A Wideband Base Station Antenna Element With Stable Radiation Pattern and Reduced Beam Squint
Sign Up to like & getrecommendations! Published in 2017 at "IEEE Access"
DOI: 10.1109/access.2017.2763177
Abstract: This paper presents the design procedure, optimization strategy, theoretical analysis, and experimental results of a wideband dual-polarized base station antenna element with superior performance. The proposed antenna element consists of four electric folded dipoles arranged… read more here.
Keywords: station antenna; beam squint; antenna element; base station ... See more keywords
Dictionary-Learning (DL)-Based Sparse CSI Estimation in Multiuser Terahertz (THz) Hybrid MIMO Systems Under Hardware Impairments and Beam-Squint Effect
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Access"
DOI: 10.1109/access.2022.3218032
Abstract: This work conceives dictionary-learning (DL)-based sparse channel estimation schemes for multi-user Terahertz (THz) hybrid MIMO systems incorporating also non-idealities such as hardware impairments and beam-squint effect. Due to the presence of large antenna arrays coupled… read more here.
Keywords: squint effect; thz; beam squint; mimo ... See more keywords
Beam Squint-Aware Integrated Sensing and Communications for Hybrid Massive MIMO LEO Satellite Systems
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Journal on Selected Areas in Communications"
DOI: 10.1109/jsac.2022.3196114
Abstract: The space-air-ground-sea integrated network (SAGSIN) plays an important role in offering global coverage. To improve the efficient utilization of spectral and hardware resources in the SAGSIN, integrated sensing and communications (ISAC) has drawn extensive attention.… read more here.
Keywords: leo satellite; beam squint; satellite systems;
Deep Learning-Based Hybrid Precoding for Terahertz Massive MIMO Communication With Beam Squint
Sign Up to like & getrecommendations! Published in 2023 at "IEEE Communications Letters"
DOI: 10.1109/lcomm.2022.3211514
Abstract: In this letter, a wideband hybrid precoding network (WHPC-Net) based on deep learning is designed for Terahertz (THz) massive multiple input multiple output (MIMO) system in the face of beam squint. Firstly, the channel state… read more here.
Keywords: beam; beam squint; mimo; deep learning ... See more keywords
3-D Hybrid Beamforming for Terahertz Broadband Communication System With Beam Squint
Sign Up to like & getrecommendations! Published in 2023 at "IEEE Transactions on Broadcasting"
DOI: 10.1109/tbc.2022.3205214
Abstract: In this paper, the three-dimensioned (3D) hybrid beamforming is designed for the terahertz (THz) based broadband broadcasting communication system with beam squint. Specifically, the full-dimensional THz massive multiple input multiple output (M-MIMO) channel model and… read more here.
Keywords: communication system; beam squint; hybrid beamforming;
Efficient Channel Estimation for Wideband Millimeter Wave Massive MIMO Systems With Beam Squint
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Transactions on Communications"
DOI: 10.1109/tcomm.2022.3156065
Abstract: Massive multiple-input-multiple-output (MIMO) and millimeter wave have been adopted as the enabling technologies for the 5G and beyond 5G (B5G) systems. A challenging problem introduced by the use of large antenna size and wide bandwidth… read more here.
Keywords: efficient channel; channel estimation; beam squint; millimeter wave ... See more keywords
Integrated Sensing and Communications With Joint Beam-Squint and Beam-Split for mmWave/THz Massive MIMO
Sign Up to like & getrecommendations! Published in 2023 at "IEEE Transactions on Communications"
DOI: 10.1109/tcomm.2023.3252584
Abstract: Integrated sensing and communications (ISAC) has attracted tremendous attention for the future 6G wireless communications systems. To improve the transmission rates and sensing accuracy, massive multi-input multi-output (MIMO) technique is leveraged with large transmission bandwidth… read more here.
Keywords: beam; beam squint; integrated sensing; sensing communications ... See more keywords
Angle-Domain Aided UL/DL Channel Estimation for Wideband mmWave Massive MIMO Systems With Beam Squint
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Transactions on Wireless Communications"
DOI: 10.1109/twc.2019.2915072
Abstract: In this paper, we design an uplink/downlink channel estimation method for millimeter wave (mmWave) massive multiple-input multiple-output (MIMO) systems and investigate the impact of beam squint effect that accompanies large array configuration. Specifically, we adopt… read more here.
Keywords: beam squint; mimo systems; channel estimation; mmwave massive ... See more keywords
Wideband Channel Estimation for IRS-Aided Systems in the Face of Beam Squint
Sign Up to like & getrecommendations! Published in 2021 at "IEEE Transactions on Wireless Communications"
DOI: 10.1109/twc.2021.3072694
Abstract: Intelligent reflecting surfaces (IRSs) improve both the bandwidth and energy efficiency of wideband communication systems by using low-cost passive elements for reflecting the impinging signals with adjustable phase shifts. To realize the full potential of… read more here.
Keywords: estimation; irs aided; channel estimation; beam squint ... See more keywords