Results 21 to 30 of about 1,455 (168)

Size Adaptive Region Based Huffman Compression Technique

open access: yesCoRR, 2014
3 pages, 4 figures ...
Utpal Nandi, Jyotsna Kumar Mandal
openaire   +2 more sources

Entropy Coding Aided Adaptive Subcarrier-Index Modulated OFDM

open access: yesIEEE Access, 2018
We propose entropy coding-aided adaptive subcarrier-index-modulated orthogonal frequency division multiplexing (SIM-OFDM). In conventional SIM-OFDM, the indices of the subcarriers activated are capable of conveying extra information. We propose the novel
Mohammad Ismat Kadir   +3 more
doaj   +1 more source

An efficient secure data compression technique based on chaos and adaptive Huffman coding [PDF]

open access: yesPeer-to-Peer Networking and Applications, 2020
AbstractData stored in physical storage or transferred over a communication channel includes substantial redundancy. Compression techniques cut down the data redundancy to reduce space and communication time. Nevertheless, compression techniques lack proper security measures, e.g., secret key control, leaving the data susceptible to attack.
Muhammad Usama   +4 more
openaire   +3 more sources

Orbital Angular Momentum Multiplexed Free-Space Optical Communication Systems Based on Coded Modulation

open access: yesApplied Sciences, 2018
In this paper, we experimentally investigate the turbulence mitigation methods in free-space optical communication systems based on orbital angular momentum (OAM) multiplexing.
Zhen Qu, Ivan B. Djordjevic
doaj   +1 more source

Kablosuz Ağlarda Yeni Bir Anahtar Dağıtım Yöntemi

open access: yesDüzce Üniversitesi Bilim ve Teknoloji Dergisi, 2017
Ağ teknolojilerinin gelişimi ve dijital cihazların artışı multimedya iletimini hızlı ve kolay kılmıştır. Bununla birlikte açık haberleşme kanalları üzerinden yapılan dijital veri iletimi, telif hakkı ihlalleri, dolandırıcılık vb.
Çağatay Ay
doaj   +4 more sources

A Novel Framework for Anomaly Detection for Satellite Momentum Wheel Based on Optimized SVM and Huffman-Multi-Scale Entropy

open access: yesEntropy, 2021
The health status of the momentum wheel is vital for a satellite. Recently, research on anomaly detection for satellites has become more and more extensive. Previous research mostly required simulation models for key components.
Yuqing Li   +4 more
doaj   +1 more source

ScBlkCom: An Integrated Compression Algorithm for Single-Cell RNA Sequencing Data [PDF]

open access: yesBIO Web of Conferences
High-throughput sequencing advancements have shifted genomic project bottlenecks from data generation to computational storage and analysis. Single-cell RNA-seq (scRNA-seq) data exhibits unique structural features, including extensive labeled sequence ...
Zhang Yuanxin   +3 more
doaj   +1 more source

Lossless Compression of Intracortical Extracellular Neural Recordings using Non-Adaptive Huffman Encoding [PDF]

open access: yes2020 42nd Annual International Conference of the IEEE Engineering in Medicine & Biology Society (EMBC), 2020
This paper investigates the effectiveness of four Huffman-based compression schemes for different intracortical neural signals and sample resolutions. The motivation is to find effective lossless, low-complexity data compression schemes for Wireless Intracortical Brain-Machine Interfaces (WI-BMI). The considered schemes include pre-trained Lone 1st and
Oscar Savolainen   +1 more
openaire   +3 more sources

Region-Based Hybrid Medical Image Watermarking Scheme for Robust and Secured Transmission in IoMT

open access: yesIEEE Access, 2022
With the growth in Internet and digital technology, Internet of Medical Things (IoMT) and Telemedicine have become buzzwords in healthcare. A large number of medical images and information is shared through a public network in these applications.
Priyanka Singh   +3 more
doaj   +1 more source

TEXT COMPRESSION ALGORITHMS - A COMPARATIVE STUDY [PDF]

open access: yesICTACT Journal on Communication Technology, 2011
Data Compression may be defined as the science and art of the representation of information in a crisply condensed form. For decades, Data compression has been one of the critical enabling technologies for the ongoing digital multimedia revolution. There
S. Senthil, L. Robert
doaj  

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