Results 31 to 40 of about 847,537 (286)

Linear Support Vector Machines for Error Correction in Optical Data Transmission [PDF]

open access: yes, 2013
Reduction of bit error rates in optical transmission systems is an important task that is difficult to achieve. As speeds increase, the difficulty in reducing bit error rates also increases.
Adams, Roderick   +5 more
core   +1 more source

Capacity of the Weakly Absorbent Turbulent Ocean Channel with the Coaxial Double-Position Power Gaussian Vortex

open access: yesJournal of Marine Science and Engineering, 2021
Turbulence and absorption of seawater are two important factors affecting the signal transmission quality of underwater optical communication link. Here, we study the channel capacity and bit error rate of an underwater extinction communication link with
Qingze Yan, Yun Zhu, Yixin Zhang
doaj   +1 more source

Unconditional Security of Single-Photon Differential Phase Shift Quantum Key Distribution

open access: yes, 2009
In this Letter, we prove the unconditional security of single-photon differential phase shift quantum key distribution (DPS-QKD) protocol, based on the conversion to an equivalent entanglement-based protocol.
C. H. Bennett   +7 more
core   +1 more source

Adaptive minimum bit-error-rate filtering [PDF]

open access: yesIEE Proceedings - Vision, Image, and Signal Processing, 2004
Adaptive filtering has traditionally been developed based on the minimum mean square error (MMSE) principle and has found ever-increasing applications in communications. The paper develops adaptive filtering based on an alternative minimum bit error rate (MBER) criterion for communication applications.
openaire   +3 more sources

A Generalized Bit Error Rate Evaluation for Index Modulation Based OFDM System

open access: yesIEEE Access, 2020
Orthogonal frequency division multiplexing (OFDM-IM) is a multicarrier transmission technology that modulates information bits not just onto subcarriers by means of M-ary constellation mapping but also onto selected (active) subcarrier indices ...
Mahmoud Abdullahi   +4 more
doaj   +1 more source

Bit error rate measurement above and below bit rate tracking threshold [PDF]

open access: yes, 1978
Bit error rate is measured by sending a pseudo-random noise (PRN) code test signal simulating digital data through digital equipment to be tested. An incoming signal representing the response of the equipment being tested, together with any added noise ...
Fowler, J., Kobayaski, H. S., Kurple, W.
core   +1 more source

A Short Wavelength GigaHertz Clocked Fiber-Optic Quantum Key Distribution System

open access: yes, 2004
A quantum key distribution system has been developed, using standard telecommunications optical fiber, which is capable of operating at clock rates of greater than 1 GHz.
Buller, Gerald S.   +3 more
core   +1 more source

Diversity and complexity in neural organoids

open access: yesFEBS Letters, EarlyView.
Neural organoid research aims to expand genetic diversity on one side and increase tissue complexity on the other. Chimeroids integrate multiple donor genomes within single organoids. Self‐organising multi‐identity organoids, exogenous cell seeding, or enforced assembly of region‐specific organoids contribute to tissue complexity.
Ilaria Chiaradia, Madeline A. Lancaster
wiley   +1 more source

Approximate minimum bit-error rate multiuser detection [PDF]

open access: yesIEEE GLOBECOM 1998 (Cat. NO. 98CH36250), 2002
The minimum mean-squared-error (MMSE) linear multiuser detector is popular because of its good performance and amenability to adaptive implementation. However, there are circumstances in which the linear detector that minimizes the bit-error rate (BER) can significantly outperform the MMSE detector.
null Chen-Chu Yeh, R. Lopes, J.R. Barry
openaire   +1 more source

Somatic mutational landscape in von Hippel–Lindau familial hemangioblastoma

open access: yesMolecular Oncology, EarlyView.
The causes of central nervous system (CNS) hemangioblastoma in Von Hippel–Lindau (vHL) disease are unclear. We used Whole Exome Sequencing (WES) on familial hemangioblastoma to investigate events that underlie tumor development. Our findings suggest that VHL loss creates a permissive environment for tumor formation, while additional alterations ...
Maja Dembic   +5 more
wiley   +1 more source

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