Results 21 to 30 of about 4,370 (213)
AI-Empowered Hybrid MIMO Beamforming
CoRR, 2023 Hybrid multiple-input multiple-output (MIMO) is an attractive technology for realizing extreme massive MIMO systems envisioned for future wireless communications in a scalable and power-efficient manner. However, the fact that hybrid MIMO systems implement part of their beamforming in analog and part in digital makes the optimization of their ...
Nir Shlezinger +5 more
openaire +2 more sources
IEEE Access, 2021 In this paper, we consider the decode-and-forward (DF) relay system in millimeter-wave (mmWave) massive multiple-input multiple-output (MIMO) systems, and propose a hybrid beamforming design method for the mixed structure, which contains the fully ...
Meng Han +5 more
doaj +1 more source
Precision planter monitoring system based on mobile communication network
IET Networks, EarlyView., 2022 Abstract Sowing is an important link in agricultural production and the basis for ensuring high yields and bumper harvests. Agriculture requires precision plows with good performance and stable work. However, the seeding process is in a completely closed state, and the operator relies mainly on experience to judge the operating state and performance of
Bing Li, Jiyun Li
wiley +1 more source
Hybrid Precoding Technique With Iterative Algorithm for MIMO-OFDM System
IEEE Access, 2020 This paper proposes a hybrid precoding technique based on multiple-input multiple-output orthogonal frequency division multiplexing (MIMO-OFDM) system to improve bit error rate (BER) performance in hybrid beamforming system.
Seulgi Lee +4 more
doaj +1 more source
Joint Phase-Time Arrays: A Paradigm for Frequency-Dependent Analog Beamforming in 6G
IEEE Access, 2022 Hybrid beamforming is an attractive solution to build cost-effective and energy-efficient transceivers for millimeter-wave and terahertz systems. However, conventional hybrid beamforming techniques rely on analog components that generate a frequency flat
Vishnu V. Ratnam +5 more
doaj +1 more source
Hybrid beamforming and steering with reconfigurable arrays [PDF]
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 2010 Reconfigurable arrays offer an advantage over traditional ultrasound arrays because of their flexibility in channel selection. To improve ultrasound beamforming and coverage through beam steering, we propose a hybrid beamforming technique to elongate the depth of focus of transmit beams and a method of element selection that improves steering ...
Fong Ming, Hooi +3 more
openaire +2 more sources
天地一体化信息网络, 2021 Due to the characteristics of low earth orbit (LEO) communication satellite system like low propagation loss, small propagation delay and high pointing accuracy, a hybrid architecture-“analog beamforming stage and digital beamforming (DBF) stage” was ...
Rong HU +6 more
doaj +2 more sources
Hybrid Beamforming for dual-polarized antenna [PDF]
2019 IEEE Wireless Communications and Networking Conference (WCNC), 2019 Recently, dual-polarized antenna has attracted strong attention in Millimeter wave (mmWave) systems. It provides an additional degree-of-freedom in wireless communication, yielding higher throughput. Nowadays, with the development of antenna technology, dual-polarized large scale antenna arrays can be realized inexpensively. However, several challenges
Dien-Hoa Truong +2 more
openaire +2 more sources
Cross-Mixing Hybrid Beamformer for Wideband Apertures [PDF]
IEEE Access, 2021 Existing beamforming arrays suffer from the size and cost of the RF front-end and digital back-end components. In this paper, a novel hybrid beamforming configuration for wideband receivers is introduced. The design replaces phase shifters and local oscillators (LO) with cross mixing antenna elements to maximize diversity gain.
Rimon Hokayem +3 more
openaire +3 more sources
Hybrid Beamforming for 5G and Beyond Millimeter-Wave Systems: A Holistic View
IEEE Open Journal of the Communications Society, 2020 Millimeter-wave (mm-wave) communication is a key technology for future wireless networks. To combat significant path loss and exploit the abundant mm-wave spectrum, effective beamforming is crucial.
Jun Zhang +2 more
doaj +1 more source