Results 11 to 20 of about 18,715,274 (294)

Bandwidth-Efficient Wireless Multimedia Communications [PDF]

open access: yes, 1998
Commencing with the brief history of mobile communications and the portrayal of the basic concept of wireless multimedia communications, the implications of Shannon’s theorems regarding joint source and channel coding for wireless communications are ...
Hanzo, L.
core   +2 more sources

Full-Band LPCNet: A Real-Time Neural Vocoder for 48 kHz Audio With a CPU

open access: yesIEEE Access, 2021
This paper investigates a real-time neural speech synthesis system on CPUs that can synthesize high-fidelity 48 kHz speech waveforms to cover the entire frequency range audible by human beings.
Keisuke Matsubara   +6 more
doaj   +1 more source

Modem Communications Systems Development Guidelines in Function of Air Traffic Safety ...

open access: yesPromet (Zagreb), 2007
The communications requirements in air traffic control areincreasing in complexity. From the middle 90s, huge progress inairport infrastructure, especially in air traffic control systems,has been made in Bosnia and Herzegovina in damage rehabilitation ...
Petar Obradović   +2 more
doaj   +1 more source

Flexible Resource Allocation for Device-to-Device Communication in FDD System for Ultra-Reliable and Low Latency Communications [PDF]

open access: yes, 2017
Ultra-reliable and low latency communications is envisioned to enable new services and applications with high reliability, availability and low latency, e.g, factory automation, Tactile Internet.
Bikramjit Singh   +5 more
core   +1 more source

Recent Advancements in Tin Halide Perovskite-Based Solar Cells and Thermoelectric Devices

open access: yesNanomaterials, 2022
The excellent optoelectronic properties of tin halide perovskites (Sn-PVKs) have made them a promising candidate for replacing toxic Pb counterparts.
Ajay Kumar Baranwal, Shuzi Hayase
doaj   +1 more source

NEWSKY - Networking the Sky for Aeronautical Communications [PDF]

open access: yes, 2007
An overview of the NEWSKY project (“NEtWorking the SKY”) is given. This project is co-funded by the European Commission within the 6th Framework Programme and has started in February 2007.
F. Schreckenbach   +9 more
core   +1 more source

Similarity Classes in the Eight-Tetrahedron Longest-Edge Partition of a Regular Tetrahedron

open access: yesMathematics, 2023
A tetrahedron is called regular if its six edges are of equal length. It is clear that, for an initial regular tetrahedron R0, the iterative eight-tetrahedron longest-edge partition (8T-LE) of R0 produces an infinity sequence of tetrahedral meshes, τ0 ...
Miguel A. Padrón   +2 more
doaj   +1 more source

Experimental demonstration of RGB LED-based optical camera communications [PDF]

open access: yes, 2015
Red, green, and blue (RGB) light-emitting diodes (LEDs) are widely used in everyday illumination, particularly where color-changing lighting is required.
Ghassemlooy, Zabih   +7 more
core   +1 more source

Enhancement of Subcooled Flow Boiling Heat Transfer with High Porosity Sintered Fiber Metal

open access: yesApplied Sciences, 2021
We conducted experimental research using high-porosity sintered fiber attached on the surface, as a passive method to increase the heat flux for subcooled flow boiling.
Yusuke Otomo   +2 more
doaj   +1 more source

Fast Single-Mode Fiber Nonlinearity Monitoring: An Experimental Comparison Between Split-Step and Nonlinear Fourier Transform-Based Methods

open access: yesIEEE Photonics Journal, 2023
We experimentally investigate the problem of monitoring the Kerr-nonlinearity coefficient $\gamma$ from transmitted and received data for a single-mode fiber link of 1600 km length. We compare the accuracy and speed of three different approaches.
Pascal de Koster   +4 more
doaj   +1 more source

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