Delay Alignment Modulation with Hybrid beamforming for Spatially Sparse Communications
, 2023 For millimeter wave (mmWave) or Terahertz (THz) communications, by leveraging the high spatial resolution offered by large antenna arrays and the multi-path sparsity of mmWave/THz channels, a novel inter-symbol interference (ISI) mitigation technique ...
Zeng, Yong, Zhang, Jieni
core
Multiuser downlink hybrid analog-digital beamforming with individual SINR constraints
This paper deals with the problem of multiuser transmit hybrid analog-digital beamforming. Precisely, we tackle the problem of transmit power minimization under minimum signal-to-noise-plus-interference ratio (SINR) constraints.
Blanco, Luis +2 more
core
Analog Beamforming Enabled Multicasting: Finite-Alphabet Inputs and Statistical CSI [PDF]
The average multicast rate (AMR) is analyzed in a multicast channel utilizing analog beamforming with finite-alphabet inputs, considering statistical channel state information (CSI).
Ouyang, Chongjun +4 more
core
Avaliação de erros de posicionamento de microfontes e influência da temperatura e umidade relativa na técnica de beamforming [PDF]
, 2013 Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-graduação em Engenharia Mecânica, Florianópolis, 2013Existe uma pressão contínua das pessoas e autoridades para a redução dos níveis de ruído das mais ...
Sanches, Diogo
core
Weighted Sumrate Maximizing Hybrid Precoder for MU-MISO-OFDM
IEEE AccessIn multi-antenna transceivers with all-digital beamforming, the number of radio frequency (RF) chains necessarily equals the number of antennas, which entails a large hardware complexity and power consumption when deploying large antenna arrays.
Sander Cornelis +2 more
doaj +1 more source
Alternating minimum mean square error hybrid beamforming algorithm in mmWave MIMO system
Dianxin kexue, 2017 The two-stage hybrid beamforming architecture can solve the problem of limited number of RF chains effectively.However,it is still difficult to design a hybrid beamforming algorithm with better performance.In order to achieve higher spectral efficiency ...
Min SHEN, Hao XU, Yun HE, Pengguang ZHOU
doaj +2 more sources
IEEE AccessLow cost digital beamforming architectures are developed and comparisons are made to analog and hybrid arrays. A brief overview of these various beamforming methods is also provided considering phased array antennas.
Dagna I. Wojciak +3 more
doaj +1 more source
Analog-only beamforming for near-field multiuser MIMO communications
Frontiers of Information Technology & Electronic EngineeringFor the existing near-field multiuser communications based on hybrid beamforming (HBF) architectures, high-quality effective channel estimation is required to obtain the channel state information (CSI) for the design of the digital beamformer. To simplify the system reconfiguration and eliminate the pilot overhead required by the effective channel ...
Ying Wang 0136, Chenhao Qi 0001
openaire +2 more sources
Joint Analog and Passive Beamforming Design for IRS-Aided Secure Cognitive NOMA Systems
, 2023 Due to the ability of channel reconfiguration, intelligent reflecting surface (IRS) can be used to boost the secrecy rate of cognitive non-orthogonal multiple access (NOMA) systems. However, the cost and hardware complexity of full-digital beamforming in
Wang, X +5 more
core
Small Drone Detection Using Hybrid Beamforming 24 GHz Fully Integrated CMOS Radar
DronesThis paper presents a compact 24 GHz radar with a 4-transmit (4Tx) and 4-receive (4Rx) CMOS radar IC, integrated with a 4 × 4 Tx array and four 1 × 4 receive Rx array antennas, optimized for enhancing small drone detection.
Kangjie Jin +3 more
doaj +1 more source