Results 41 to 50 of about 1,354,654 (336)

The capacity of black holes to transmit quantum information [PDF]

open access: yes, 2014
We study the properties of the quantum information transmission channel that emerges from the quantum dynamics of particles interacting with a black hole horizon.
Adami, Christoph, Bradler, Kamil
core   +3 more sources

Quantum channel capacities: Multiparty communication [PDF]

open access: yesPhysical Review A, 2006
1 ...
Demianowicz, Maciej, Horodecki, Pawel
openaire   +2 more sources

Improving Streaming Capacity in Multi-Channel P2P VoD Systems via Intra-Channel and Cross-Channel Resource Allocation

open access: yesInternational Journal of Digital Multimedia Broadcasting, 2012
Multi-channel Peer-to-Peer (P2P) Video-on-Demand (VoD) systems can be categorized into independent-channel P2P VoD systems and correlated-channel P2P VoD systems.
Yifeng He, Ling Guan
doaj   +1 more source

Compact Elliptical UWB Antenna for Underwater Wireless Communications

open access: yesMicromachines, 2021
The increasing needs of free licensed frequency bands like Industrial, Scientific, and Medical (ISM), Wireless Local Area Network (WLAN), and 5G for underwater communications required more bandwidth (BW) with higher data transferring rate.
Adam R. H. Alhawari   +8 more
doaj   +1 more source

Analysis of Massive MIMO Performance in an Indoor Picocell With High Number of Users

open access: yesIEEE Access, 2020
This paper presents an analysis of the massive multiple input and multiple output (MIMO) channel in an indoor picocell with a high number of active user terminals and a base station consisting of a virtual array with up to one hundred elements.
Jesus R. Perez   +4 more
doaj   +1 more source

An Approach for Security Enhancement of Certain Encryption Schemes Employing Error Correction Coding and Simulated Synchronization Errors

open access: yesEntropy, 2022
An approach for the cryptographic security enhancement of encryption is proposed and analyzed. The enhancement is based on the employment of a coding scheme and degradation of the ciphertext.
Miodrag J. Mihaljević   +2 more
doaj   +1 more source

Inner and Outer Bounds for the Gaussian Cognitive Interference Channel and New Capacity Results [PDF]

open access: yes, 2010
The capacity of the Gaussian cognitive interference channel, a variation of the classical two-user interference channel where one of the transmitters (referred to as cognitive) has knowledge of both messages, is known in several parameter regimes but ...
Devroye, Natasha   +2 more
core   +1 more source

Convexity of the Capacity of One-Bit Quantized Additive White Gaussian Noise Channels

open access: yesMathematics, 2022
In this study, the maximum error-free transmission rate of an additive white Gaussian noise channel with a symmetric analog-to-digital converter (ADC) was derived as a composite function of the binary entropy function, Gaussian Q-function, and the square
Sungmin Lee, Moonsik Min
doaj   +1 more source

Quantum-channel capacity of very noisy channels [PDF]

open access: yesPhysical Review A, 1998
31 pages including epsf postscript figures.
DiVincenzo, David P.   +2 more
openaire   +2 more sources

Capacity Bounds for Dense Massive MIMO in a Line-of-Sight Propagation Environment

open access: yesSensors, 2020
The use of large-scale antenna arrays grants considerable benefits in energy and spectral efficiency to wireless systems due to spatial resolution and array gain techniques.
Felipe A. P. de Figueiredo   +3 more
doaj   +1 more source

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