Results 101 to 110 of about 619,668 (328)

Modulation/demodulation techniques for satellite communications. Part 1: Background [PDF]

Basic characteristics of digital data transmission systems described include the physical communication links, the notion of bandwidth, FCC regulations, and performance measurements such as bit rates, bit error probabilities, throughputs, and delays. The
Omura, J. K., Simon, M. K.
core   +1 more source

Forward Error Correction for Fast Streaming with Open-Source Components [PDF]

, 2015
The mechanisms that provide streaming functionality are complex and far from perfect. Reliability in transmission depends upon the underlying protocols chosen for implementation. There are two main networking protocols for data transmission: TCP and UDP.
Reynolds, John
core   +1 more source

VHDL Implementation of Reed-Solomon FEC architecture for high-speed optical communications [PDF]

, 2020
In the quest to achieve high data rates, several 100 Gbps Ethernet standards for backplane, copper cables and fiber optic that include forward error correction based on Reed–Solomon (RS) codes have been recently approved. This thesis work presents the
Shanmugam, Harini
core   +1 more source

Molecular Domino Toppling for Directed Self‐Erasing Information Transfer

Advanced Materials, EarlyView.
An azobenzene‐based material with unprecedented light‐pumped directional charge‐transfer reminiscent of toppling dominoes is presented. After light‐induced trans→cis forward isomerization, electron hopping occurs in a sequential and propagating manner between the cis isomers along with an electrocatalytic cis→trans backward isomerization.
Ying Li, Abhinav Chandresh, Hung‐Hsuan Lin, Nina Vankova, Dragos Mutruc, Thomas Heine, Stefan Hecht, Lars Heinke   +7 more
wiley   +1 more source

Cooperative Spectrum Sensing with Coded and Uncoded Decision Fusion under Correlated Shadowed Fading Report Channels

Sensors, 2018
This article addresses the impact of forward error correction when applied to the report channel transmissions of a centralized decision fusion cooperative spectrum sensing scheme designed to detect idle ofdma subchannels. The ofdma signal is transmitted
Lucas dos Santos Costa, Dayan Adionel Guimarães, Rausley Adriano Amaral de Souza, Roberto César Dias Vilela Bomfin   +3 more
doaj   +1 more source

An Efficient FEC Encoder Core for VCM LEO Satellite-Ground Communications

IEEE Access, 2020
A powerful forward error correction (FEC) scheme based on the serial concatenation of Bose-Chaudhuri-Hocquenghen (BCH) and low-density parity-check (LDPC) codes has been adopted by the second generation digital video broadcast (DVB-S2) standard due to ...
Jing Kang, Jun She An, Bingbing Wang
doaj   +1 more source

Machine Intelligence in Decoding of Forward Error Correction Codes.

, 2017
A deep learning algorithm for improving the performance of the Sum-ProductAlgorithm (SPA) based decoders is investigated. The proposed Neural NetworkDecoders (NND) [22] generalizes the SPA by assigning weights to the edges ofthe Tanner graph. We elucidate the peculiar design, training, and working of theNND. We analyze the edge weight’s distribution of
openaire   +2 more sources

On Short Forward Error-Correcting Codes for Wireless Communication Systems

2007 16th International Conference on Computer Communications and Networks, 2007
For real-time wireless communications, short forward error-correcting (FEC) codes are indispensable due to the strict delay requirement. In this paper we study the performance of short FEC codes. Reed-Solomon (RS) codes and concatenated zigzag (CZ) codes are chosen as representatives of classical algebraic codes and modern simple iterative decodable ...
Sheng Tong, Aleksandar Kavcic, Li Ping, Baoming Bai, Dengsheng Lin   +4 more
openaire   +3 more sources

Formulation and Characterization of Novel Ionizable and Cationic Lipid Nanoparticles for the Delivery of Splice‐Switching Oligonucleotides

Advanced Materials, EarlyView.
Lipid nanoparticles (LNPs) of unconventional composition and defined structures are investigated as small oligonucleotide carriers. A composition is identified that outperforms Onpattro in cargo delivery to HeLa cells. The structure of these LNPs resembles a micellar cubic phase not commonly associated with high‐performing LNPs.
Miina Ojansivu, Hanna M. G. Barriga, Margaret N. Holme, Stefanie Morf, James J. Doutch, Samir EL Andaloussi, Tomas Kjellman, Markus Johnsson, Justas Barauskas, Molly M. Stevens   +9 more
wiley   +1 more source

Parameter Estimation of Convolutional and Helical Interleavers in a Noisy Environment

IEEE Access, 2017
Forward error correction (FEC) codes followed by an interleaver play a significant role in improving the error performance of the digital systems by counteracting random and burst errors.
Swaminathan Ramabadran, A. S. Madhukumar, Ng Wee Teck, Chong Meng Samson See   +3 more
doaj   +1 more source