Results 41 to 50 of about 188,879 (245)
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.
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FEBS Letters, EarlyView.This perspective highlights emerging insights into how the circadian transcription factor CLOCK:BMAL1 regulates chromatin architecture, cooperates with other transcription factors, and coordinates enhancer dynamics. We propose an updated framework for how circadian transcription factors operate within dynamic and multifactorial chromatin landscapes ...
Xinyu Y. Nie, Jerome S. Menet
wiley +1 more source
Adaptive Modulation Scheme for Soft-Switching Hybrid FSO/RF Links Based on Machine Learning
PhotonicsA 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 +3 more
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Dynamic channel allocation techniques using adaptive modulation and adaptive antennas [PDF]
IEEE Journal on Selected Areas in Communications, 1999 This contribution studies the impact of adaptive modulation (AQAM) on network performance, when applied to a cellular network using adaptive antennas with fixed channel allocation (FCA) and locally distributed dynamic channel allocation (DCA) schemes.
Blogh, J.S., Cherriman, P.J., Hanzo, L.
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Disordered but rhythmic—the role of intrinsic protein disorder in eukaryotic circadian timing
FEBS Letters, EarlyView.Unstructured domains known as intrinsically disordered regions (IDRs) are present in nearly every part of the eukaryotic core circadian oscillator. IDRs enable many diverse inter‐ and intramolecular interactions that support clock function. IDR conformations are highly tunable by post‐translational modifications and environmental conditions, which ...
Emery T. Usher, Jacqueline F. Pelham
wiley +1 more source
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 +3 more
wiley +1 more source
Design and Implementation of Adaptive Modulation Modem Based on Software Defined Radio(SDR) for WiMAX System [PDF]
Engineering and Technology Journal, 2010 This paper presents design and implementation of adaptivemodulation modem for WiMAX system. (BPSK, QPSK, 8QAM, 16QAM,32QAM and 64QAM) are used in this work. Software Defined Radio(SDR)is used for implementing this modem.
H. T. Ziboon, Zeinah Tariq Naif
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IEEE Access, 2021 Wireless Sensor Networks (WSNs) play a vital role in modern technology since they have recently emerged into enormous essential applications of the Internet of Things (IoT).
Amjad Abu-Baker +2 more
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Time after time – circadian clocks through the lens of oscillator theory
FEBS Letters, EarlyView.Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo +2 more
wiley +1 more source
Nondata-aided error vector magnitude based adaptive modulation over rapidly time-varying channels
Tongxin xuebao, 2017 A novel nondata-aided error vector magnitude based adaptive modulation(NDA-EVM-AM) was proposed to solve the problem of lower spectral efficiency over rapidly time-varying wireless channels.Namely,NDA-EVM was considered as a metric to reflect the rapid ...
Fan YANG +5 more
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