Results 81 to 90 of about 3,362 (185)

Increasing the symbol rate in QAM system using a new set of orthonormal basics functions

Journal of Electrical Systems and Information Technology, 2018
This paper proposes a new technique to increase the symbol rate in Quadrature Amplitude Modulation (QAM) using a new set of orthonormal functions. The proposed technique increases the rate of QAM symbols without increasing the bandwidth of the modulated ...
A.Y. Hassan
doaj   +1 more source

Multibeam-based mmWave segmented beamforming array system for high efficiency and secure communication

Engineering Science and Technology, an International Journal
A new mmWave transmitter architecture with multibeam-based segmented beamforming arrays (SBAs) for high-efficiency and secure communication is proposed.
Seung-Won Oh, Woo-Hee Lim, Han Lim Lee
doaj   +1 more source

A Power-Efficient Soft-Output Detector for Spatial-Multiplexing MIMO Communications

Journal of Electrical and Computer Engineering, 2012
VLSI implementation of a configurable power-efficient MIMO detector is proposed to support 4×4 spatial multiplexing and modulation from QPSK to 64-QAM.
Hsiao-Chi Wang, Tung-Lin Liu, Yuan-Wei Wu, Hsi-Pin Ma   +3 more
doaj   +1 more source

On Performance of Integrated Satellite HAPS Ground Communication: Aerial IRS Node vs Terrestrial IRS Node

IEEE Open Journal of the Communications Society
With an objective of ubiquitous connectivity around the world with enhanced spectral efficiency, intelligent reflecting surfaces (IRS) integrated satellite-terrestrial communications is a topic of research interest specially in infrastructure-deficient ...
Parvez Shaik, Kamal Kishore Garg, Praveen Kumar Singya, Vimal Bhatia, Ondrej Krejcar, Mohamed-Slim Alouini   +5 more
doaj   +1 more source

Low-complexity Automatic Modulation Classification of Higher-order QAM Based on Square Modulus Extraction

JITCE (Journal of Information Technology and Computer Engineering)
Modulation classification plays a key role in decoding cognitive radio, signal identification, menace assessment, spectrum senses, and management, efficient use of available spectrum and increase in the speed of data transfer.
Olalekan Bello
doaj   +2 more sources

Integrating fixed and mobile coherent optical access networks for unified broadband services. [PDF]

Commun Eng
Wu Q, Wei Z, Zhang X, Wei H, Huo J, Huang X, Ji T, Xu Z, Lu C, Lau APT, Zhong K.   +10 more
europepmc   +1 more source

A multi-modal strategy for enhancing titanium-bone interface strength and antimicrobial properties of PMMA bone cements. [PDF]

Mater Des
Weber S, Lewis SH, de Lucena FS, Strazzi-Sahyon HB, Tsuzuki FM, Rajasekaran SP, Logan MG, Fugolin APP, Nakayama KH, Pfeifer CS.   +9 more
europepmc   +1 more source

Optimizing 5G NR link layer parameters for eMBB and URLLC applications under dynamic channel and transmission configurations. [PDF]

Sci Rep
Pateriya S, Bandopadhaya S, Bairwa AK, Jain V.   +3 more
europepmc   +1 more source

An Open-Source QAM MODEM for Visible Light Communication in FPGA for Real-Time Applications. [PDF]

Sensors (Basel)
Ricci S.
europepmc   +1 more source

AI-Enhanced Hybrid QAM-PPM Visible Light Communication for Body Area Networks. [PDF]

Sensors (Basel)
Shrestha S, Taparugssanagorn A, Caputo S, Mucchi L.   +3 more
europepmc   +1 more source