Results 11 to 20 of about 2,907 (204)
Performance Evaluation of Analog Beamforming with Hardware Impairments for mmW Massive MIMO Communication in an Urban Scenario [PDF]
Sensors, 2016 The use of massive multiple-input multiple-output (MIMO) techniques for communication at millimeter-Wave (mmW) frequency bands has become a key enabler to meet the data rate demands of the upcoming fifth generation (5G) cellular systems.
Sonia Gimenez +6 more
doaj +6 more sources
True-Time-Delay Receiver IC With Reconfigurable Analog and Digital Beamforming
IEEE Access, 2022 Spatial diversity advantages such as improved signal-to-noise ratio and in-band blocker filtering can be achieved through beamforming in the digital and/or analog domain.
Kalle Spoof +5 more
doaj +4 more sources
Analog Beamformer Design for Interference Exploitation Based Hybrid Beamforming [PDF]
2018 IEEE 10th Sensor Array and Multichannel Signal Processing Workshop (SAM), 2018 Hybrid analog-digital beamforming has been shown to reduce hardware cost and power consumption in massive MIMO systems, at the expense of increased radiated power for given performance targets. To alleviate the above shortfall, in this paper we exploit the concept of constructive interference (CI) that has been shown to offer significant radiated power
Ganapati Hegde +2 more
openaire +3 more sources
Efficient Algorithms for Constant-Modulus Analog Beamforming [PDF]
IEEE Transactions on Signal Processing, 2022 The use of a large-scale antenna array (LSAA) has become an important characteristic of multi-antenna communication systems to achieve beamforming gains. For example, in millimeter wave (mmWave) systems, an LSAA is employed at the transmitter/receiver end to combat severe propagation losses.
Aakash Arora +4 more
openaire +4 more sources
Beam Index Modulation Wireless Communication With Analog Beamforming [PDF]
IEEE Transactions on Vehicular Technology, 2018 In this paper, we propose a new architecture and performance analysis for beam index modulation (BIM) wireless communication implemented with the aid of analog beamforming. The BIM concept is presented in order to extend and adapt the spatial modulation concept to sparse wireless communication channel environments.
Yuan Ding 0001 +4 more
core +6 more sources
Analog Beamforming With Antenna Selection For Large-Scale Antenna Arrays [PDF]
ICASSP 2021 - 2021 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2021 In large-scale antenna array (LSAA) wireless communication systems employing analog beamforming architectures, the placement or selection of a subset of antennas can significantly reduce the power consumption and hardware complexity. In this work, we propose a joint design of analog beamforming with antenna selection (AS) or antenna placement (AP) for ...
Aakash Arora +4 more
openaire +2 more sources
ON–OFF Analog Beamforming for Massive MIMO [PDF]
IEEE Transactions on Vehicular Technology, 2018 This paper investigates a new analog beamforming architecture for massive multiple-input multiple-output (MIMO) systems, where each of the multiple transmit antennas is switched to be on or off to form a beam according to the channel state information at transmitters.
Shengli Zhang +2 more
exaly +3 more sources
DRL-Based Beam Split Alleviation for Movable Antenna-Enabled Near-Field Wideband Communications [PDF]
SensorsNear-field communication is regarded as a key enabling technology for future 6G wireless systems. However, when operating over wide bandwidths, the beam split effect arising from frequency-independent analog phase shifters leads to significant ...
Tingting Zhang +4 more
doaj +2 more sources
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 +4 more sources
Analog Beamforming For Active Imaging Using Sparse Arrays [PDF]
2019 53rd Asilomar Conference on Signals, Systems, and Computers, 2019 5 pages, conference ...
Chepuri, Sundeep +3 more
openaire +5 more sources