Results 51 to 60 of about 485,680 (303)

Enhanced Visible Light Communication for Real-Time Audio With Interference-Resilient Protocols

IEEE Access
Despite its potential for high-speed data transmission, visible light communication (VLC) technology faces significant challenges in achieving reliable real-time audio streaming due to interference, signal degradation, and synchronization issues.
Kanchana Chathurangi Ahangama, Hemali Pasqual, Chinthaka Premachandra, H. Waruna Haripriya Premachandra   +3 more
doaj   +1 more source

Algorithm based on 2‐bit adaptive delta modulation and fractional linear prediction for Gaussian source coding

IET Signal Processing, 2021
A novel 2‐bit adaptive delta modulation (ADM) algorithm is presented based on uniform scalar quantization and fractional linear prediction (FLP) for encoding the signals modelled by a Gaussian probability density function. The study focusses on two major
Zoran Peric, Bojan Denic, Vladimir Despotovic   +2 more
doaj   +1 more source

Deep Reinforcement Learning-Based Adaptive Modulation for Underwater Acoustic Communication with Outdated Channel State Information

Remote Sensing, 2022
Underwater acoustic (UWA) adaptive modulation (AM) requires feedback about channel state information (CSI) but the long propagation delays and time-varying features of UWA channels can cause the CSI feedback to be outdated.
Yuzhi Zhang, Jingru Zhu, Haiyan Wang, Xiaohong Shen, Bin Wang, Yuan Dong   +5 more
doaj   +1 more source

Coded Adaptive Linear Precoded Discrete Multitone Over PLC Channel [PDF]

, 2008
Discrete multitone modulation (DMT) systems exploit the capabilities of orthogonal subcarriers to cope efficiently with narrowband interference, high frequency attenuations and multipath fadings with the help of simple equalization filters.
Baudais, Jean-Yves, Crussière, Matthieu, Hélard, Jean-François, Muhammad, Fahad Syed   +3 more
core   +5 more sources

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

FEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe, Tanmay Kumar Mohanty, Rashna Bhandari, Dorothea Fiedler   +3 more
wiley   +1 more source

MODEL-BASED PREDICTIVE ADAPTIVE DELTA MODULATION [PDF]

IFAC Proceedings Volumes, 2007
Abstract This paper presents a new technique in digital communications, called model-based-predictive adaptive-delta-modulation (MBP-ADM). MBP-ADM uses system identification tools to identify a model of the signal which is used for prediction. The prediction helps the system to respond adaptively to a varying input signal, in order to achieve ...
Al-Korj, Anas, Veres, S.M.
openaire   +2 more sources

Adaptive tracking notch filter system Patent [PDF]

, 1968
Adaptive notch filter, using modulation techniques for reversed phase noise ...
Borelli, M. T., Daniels, H. J., Hosenthien, H. H.   +2 more
core   +1 more source

An upstream open reading frame regulates expression of the mitochondrial protein Slm35 and mitophagy flux

FEBS Letters, EarlyView.
This study reveals how the mitochondrial protein Slm35 is regulated in Saccharomyces cerevisiae. The authors identify stress‐responsive DNA elements and two upstream open reading frames (uORFs) in the 5′ untranslated region of SLM35. One uORF restricts translation, and its mutation increases Slm35 protein levels and mitophagy.
Hernán Romo‐Casanueva, Ariann E. Mendoza‐Martínez, P. Abril Medina‐Flores, Carlos Campero‐Basaldua, Alexander DeLuna, Soledad Funes   +5 more
wiley   +1 more source

Adaptive Modulation Scheme for Soft-Switching Hybrid FSO/RF Links Based on Machine Learning

Photonics
A hybrid free-space optical (FSO) and radio frequency (RF) communication system has been considered an effective way to obtain a good trade-off between spectrum utilization efficiency and high-rate transmission.
Junhu Shao, Yishuo Liu, Xuxiao Du, Tianjiao Xie   +3 more
doaj   +1 more source

Symbol-Level Multiuser MISO Precoding for Multi-level Adaptive Modulation [PDF]

, 2017
Symbol-level precoding is a new paradigm for multiuser downlink systems which aims at creating constructive interference among the transmitted data streams.
Alodeh, Maha, Chatzinotas, Symeon, Ottersten, Bjorn   +2 more
core   +2 more sources