Results 121 to 130 of about 1,380,112 (215)

Semi-blind adaptive beamforming for high-throughput quadrature amplitude modulation systems

, 2010
A semi-blind adaptive beamforming scheme is proposed for wireless systems that employ high-throughput quadrature amplitude modulation signalling. A minimum number of training symbols, equal to the number of receiver antenna arrays elements, are first ...
Sheng Chen, Chen, Sheng, Wang Yao, Hanzo, Lajos, Lajos Hanzo, Yao, Wang   +5 more
core   +1 more source

Performance Comparison of Hybrid Switch, Phase Shifter and Lens Network over Hybrid Beamforming in Millimeter Wave Massive MIMO [PDF]

Iranian Journal of Electrical and Electronic Engineering
Due to cost and energy concerns with digital beamformers, much of the beamforming is done by hybrid beamformers in mm-wave (mm) massive multiple input multiple output (MIMO). Various works in hybrid beamforming structures considered either phase shifters,
Tadele A Abose, Thomas O Olwal, Abel D Daniel, Murad R Hassen   +3 more
doaj  

Digital Beamforming and MIMO SAR: Review and New Concepts [PDF]

, 2012
Spaceborne Synthetic Aperture Radar (SAR) is a unique tool for large scale Earth observation, but the current generation of SAR sensors suffers from some fundamental limitations with regard to their imaging and mapping capabilities.
Villano, Michelangelo, Patyuchenko, Anton, Laskowski, Piotr, Huber, Sigurd, Bordoni, Federica, Moreira, Alberto, Younis, Marwan, Krieger, Gerhard, Kim, Junghyo, Rommel, Tobias, Lopez-Dekker, Paco   +10 more
core  

Design of Millimeter Wave Hybrid Beamforming Systems

, 2014
Millimeter wave (mmWave) signals experience a significant path-loss in free space. To overcome this weakness, a large number of antennas are needed to obtain a high beamforming gain.
Shim, Yeonggyu, Kwon, Hyuck M., Park, Hyuncheol, Kwon, Girim   +3 more
core   +1 more source

Hybrid receive beamforming applied to ultrasound imaging [PDF]

In the field of ultrasound imaging, reducing the computational cost of image reconstruction (i.e., applying receive beamforming to multichannel transducer data) is important for practical system implementations.
Xu, Han
core  

Scalable RIS-aided hybrid beamforming for mmWave systems enables multiple sub-array architectures: A Geometric Mean Approach. [PDF]

PLoS One
Tran HM, Dinh TV, Nguyen HT, Nguyen HT.
europepmc   +1 more source

State-Driven Adaptive Deep-Unfolded PGA Algorithm for Hybrid Beamforming in MIMO-JCAS Systems. [PDF]

Sensors (Basel)
Liu F, Wang Z, Gao Y, Yao Z.
europepmc   +1 more source

Cross-Layer Stream Allocation of mMIMO-OFDM Hybrid Beamforming Video Communications. [PDF]

Sensors (Basel)
Chen YT, Tseng SM, Chen YF, Fang C.
europepmc   +1 more source

Minimum symbol error rate turbo multiuser beamforming aided QAM receiver

, 2008
This paper studies a novel iterative soft interference cancellation (SIC) aided beamforming receiver designed for high-throughput quadrature amplitude modulation systems communicating over additive white Gaussian noise channels.
Chen, Sheng, Tan, S, Hanzo, L
core  

Joint Power Allocation and Hybrid Beamforming for Cell-Free mmWave Multiple-Input Multiple-Output with Statistical Channel State Information. [PDF]

Sensors (Basel)
Bai J, Wang G, Wang M, Zhu J.
europepmc   +1 more source