Results 11 to 20 of about 4,212 (265)

Frequency Division Multiplexing of Terahertz Waves Realized by Diffractive Optical Elements

open access: yesApplied Sciences, 2021
Recently, one of the most commonly discussed applications of terahertz radiation is wireless telecommunication. It is believed that the future 6G systems will utilize this frequency range. Although the exact technology of future telecommunication systems
Paweł Komorowski   +8 more
doaj   +1 more source

Quantum and classical telecommunication channel multiplexing

open access: yes, 2015
We demonstrate the multiplexing of a classical coherent and a quantum state of light in a single telecommunciation fiber. For this purpose we make use of spontaneous parametric down conversion and quantum frequency conversion to generate photon pairs at 854 nm and the telecom O-band. The herald photon triggers a telecom C-band laser pulse.
Lenhard, Andreas   +5 more
openaire   +2 more sources

Estimation and stochastic control of nonlinear dynamic systems over the AWGN channel: Application in tele‐presence and tele‐operation of autonomous vehicles

open access: yesIET Control Theory & Applications, 2023
This paper is concerned with tele‐presence and tele‐operation of autonomous vehicles over the Additive White Gaussian Noise (AWGN) channel. This wireless communication channel is subject to transmission noise and transmission power constraint. An encoder,
Somayeh Dolatkhah Takloo   +2 more
doaj   +1 more source

One to Many QKD Network System Using Polarization-Wavelength Division Multiplexing

open access: yesIEEE Access, 2020
The quantum key distribution (QKD) research, which is drawing attention as the next secure communication, is actively expanding from point to point system to network architecture. In QKD network system, it is important to increase the number of users who
Min Ki Woo   +8 more
doaj   +1 more source

RAC-Multi: Reader Anti-Collision Algorithm for Multichannel Mobile RFID Networks

open access: yesSensors, 2009
At present, RFID is installed on mobile devices such as mobile phones or PDAs and provides a means to obtain information about objects equipped with an RFID tag over a multi-channeled telecommunication networks.
Kwangcheol Shin, Wonil Song
doaj   +1 more source

Experimental Space-Division Multiplexed Polarization-Entanglement Distribution through 12 Paths of a Multicore Fiber

open access: yesPRX Quantum, 2021
The development and wide application of quantum technologies highly depend on the capacity of the communication channels distributing entanglement.
Evelyn A. Ortega   +8 more
doaj   +1 more source

Hybrid game approach‐based channel congestion control for the Internet of Vehicles

open access: yesIET Wireless Sensor Systems, 2021
Communications between the Internet of Vehicles in smart cities helps increase the awareness and safety among drivers. However, the channel congestion problem is considered as a key challenge for the communication networks due to continuing collection ...
Hayder M. Amer   +4 more
doaj   +1 more source

ROBUST TELECOMMUNICATION CHANNEL WITH PARAMETERS CHANGING ON A FRAME-BY-FRAME BASIS

open access: yesAdvanced Information Systems, 2020
An approach is proposed to design of a robust data transfer channel for telecommunication networks that is based on the desired bits spectrum spreading and their additional scrambling by using two pseudo noise coding sequences derived from primitive polynomials of eighth and fifteenth degrees. Further information protection is offered to be achieved by
Pliushch, Oleksandr   +2 more
openaire   +5 more sources

Review on 6G communication and its architecture, technologies included, challenges, security challenges and requirements, applications, with respect to AI domain

open access: yesIET Quantum Communication
The evolution of wireless communication systems has led to the emergence of the sixth generation (6G) communication architecture, characterised by transformative technologies and novel paradigms that transcend the capabilities of its predecessors.
Pranita Bhide   +2 more
doaj   +1 more source

Joint Control of Radiated and Surface Waves via Space‐Time Coding Metasurfaces

open access: yesAdvanced Functional Materials, EarlyView.
A unified space‐time coding metasurface platform enables simultaneous control of radiated and surface‐confined waves across multiple harmonics. Demonstrated functionalities include multi‐frequency beam shaping; surface‐wave excitation, and hybrid multiplexing.
Zihao Dai   +6 more
wiley   +1 more source

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