Results 51 to 60 of about 2,358,795 (324)

Development of new all-optical signal regeneration technique [PDF]

open access: yes, 2017
All-optical signal regeneration have been the active research area since last decade due to evolution of nonlinear optical signal processing. Existing all-optical signal regeneration techniques are agitated in producing low Bit Error Rate (BER) of 10-10 ...
A Mohajerin-Ariaei   +21 more
core   +1 more source

Mammalian Proteome Profiling Reveals Readers and Antireaders of Strand‐Symmetric and ‐Asymmetric 5‐Hydroxymethylcytosine‐Modifications in DNA

open access: yesAdvanced Science, EarlyView.
ABSTRACT The cytosine (C) modifications 5‐methylcytosine (mC) and 5‐hydroxymethylcytosine (hmC) are central regulatory elements of mammalian genomes. Both marks occur in double‐stranded DNA in either strand‐symmetric or ‐asymmetric fashion, but it is still poorly understood how this symmetry information is selectively read out by the nuclear proteome ...
Lena Engelhard   +8 more
wiley   +1 more source

Extreme Outages due to Polarization Mode Dispersion

open access: yes, 2003
We investigate the dependence of the bit-error-rate (BER) caused by amplifier noise in a linear optical fiber telecommunication system on the fiber birefringence.
Andresciani   +18 more
core   +1 more source

Protocol‐Agnostic Meta Key Distribution for Encrypted Wireless Communications Enabled by Space‐Time‐Coding Metasurface

open access: yesAdvanced Science, EarlyView.
This paper presents a programmable metasurface‐based Meta Key Distribution (MKD) system for secure, protocol‐independent key exchange in indoor wireless settings. By embedding entropy into the wireless channel, it enables lightweight, compatible cryptographic key generation.
Xinyu Li   +7 more
wiley   +1 more source

Study of the atmospheric turbulence in free space optical communications [PDF]

open access: yes, 2009
-In this paper the effect of atmospheric turbulence on free space optical (FSO) communications is investigated experimentally by designing a turbulence simulation chamber.
Fan, Z.   +4 more
core   +1 more source

Super‐Robust Telecommunications Enabled by Topological Half‐Supermodes

open access: yesAdvanced Science, EarlyView.
Through topological half‐supermode engineering, we realize a valley‐ridge gap waveguide that is directly compatible with conventional waveguides and features topological protection. This design halves the lateral size via a PEC boundary, enabling direct TE₁₀‐mode matching and robust bend‐immune transmission.
Rui Zhou   +8 more
wiley   +1 more source

Group-indexed orthogonal frequency division multiplexing index modulation aided performance trade off

open access: yesETRI Journal, 2022
In this study, a novel group-indexed orthogonal frequency division multiplexing index modulation (OFDM-IM) scheme is proposed to achieve a tradeoff between spectral efficiency (SE) and bit-error-rate (BER) performance.
Thomas Wilfred Edison Athisaya Anushya   +2 more
doaj   +1 more source

A CRDNet‐Based Watermarking Algorithm for Fused Visible–Infrared Images

open access: yesAdvanced Intelligent Systems, EarlyView.
CRDnet includes encoders and decoders based on residual and dense structures, a fusion network robust to 12 visible and infrared image fusion algorithms, and predictors for predicting watermarked infrared images. The encoder and decoder incorporate preprocessing steps, attention mechanisms, and activation functions suitable for infrared images.
Yu Bai   +4 more
wiley   +1 more source

Estimating the probability of messages delivery in an IoT system

open access: yesВестник Дагестанского государственного технического университета: Технические науки
Objective. The aim of the study is to develop a model for estimating the probability of message delivery in a medical Internet of Things (IoMT) system and to study the dependence of this value on the number of retransmissions used to compensate for ...
K. A. Polshchykov, T. N. Mahdi
doaj   +1 more source

Dual Entropy Source Physical Unclonable Functions of Reconfigurable Feedback Field‐Effect Transistors with Polycrystalline Silicon Channels

open access: yesAdvanced Intelligent Systems, EarlyView.
Physically unclonable functions (PUFs) of reconfigurable feedback field‐effect transistors (R‐FBFETs) with polycrystalline silicon channels are designed for dual entropy sources. The uniqueness and reliability of the dual entropy source PUF are verified by inter‐ and intra‐Hamming distances of 49.13% and 3.47%, respectively, as well as NIST statistical
Taeho Park   +4 more
wiley   +1 more source

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