Results 71 to 80 of about 1,286,132 (244)

Near-Capacity Irregular Bit-Interleaved Coded Modulation [PDF]

open access: yes, 2008
An Irregular Bit-Interleaved Coded Modulation based Iterative Decoding (Ir-BICM-ID) aided scheme is proposed. The irregularity of the scheme pervades the three basic components of BICM-ID, namely the encoder, the unity-rate precoder and the bit-to-symbol
Tee, R. Y.   +7 more
core   +1 more source

Implantable Ionic Memristors Based on Natural Polymer Heterojunctions

open access: yesAdvanced Functional Materials, EarlyView.
We report an implantable natural polymer‐based ionic memristor composed of hyaluronic acid, chitosan, and PDMS. The device achieved 98.94% accuracy in MNIST classification while reducing training time by 36.8% compared with a conventional artificial neural network (ANN).
Dong‐yup Lee   +6 more
wiley   +1 more source

Maximum Euclidean distance network coded modulation for asymmetric decode-and-forward two-way relaying

open access: yes, 2013
Network coding (NC) compresses two traffic flows with the aid of low-complexity algebraic operations, hence holds the potential of significantly improving both the efficiency of wireless two-way relaying, where each receiver is collocated with a ...
Chen, Wei, Hanzo, Lajos, Cao, Zhigang
core   +1 more source

Wideband Burst-by-Burst Adaptive Modulation Using Reduced-Complexity In-Phase/Quadrature-Phase Turbo Equalization

open access: yes, 2002
The performance of burst-by-burst adaptive modulation is studied in conjunction with reduced complexity turbo equalization over a wideband multi-path Rayleigh fading channel.
Wong, C H, Yeap, B L, Hanzo, L
core   +1 more source

Masking in the modulation rate domain

open access: yesArchives of Acoustics, 2003
This study examines the amplitude modulation (AM) detection in the presence of a masking modulating signal. The detection thresholds of sinusoidal amplitude modulation were measured for a 4 kHz sinusoidal carrier.
J. Lemańska, A. P. Sęk, W. Rybicka
doaj  

Biodegradable and Biocompatible Functional Polymers for Biomedical Applications

open access: yesAdvanced Functional Materials, EarlyView.
Biodegradable and biocompatible functional polymers integrate electrical, mechanical, and stimuli‐responsive functionalities while enabling programmed degradation under physiological conditions. This review introduces recent advances in conductive, shape‐memory, self‐healing, photocurable, and adhesive polymer systems, emphasizing material design ...
Won Bae Han   +5 more
wiley   +1 more source

Algorithms for Modules Implementing Amplitude Impulse Modulation

open access: yesВестник Дагестанского государственного технического университета: Технические науки
Objective. The aim of the study is to develop algorithms and approaches for effective synthesis of controllers in automated control systems (ACS) that utilize amplitude impulse modulation (AIM), as well as address the shortcomings of classical synthesis ...
N. L. Grechkin, E. Yu. Vataeva
doaj   +1 more source

Monolithic Oxidation Enables Ultrathin Vertically Graded Tantalum Oxide for Low‐Voltage, Low‐Variability Memristive Switching

open access: yesAdvanced Functional Materials, EarlyView.
Monolithic UV‐ozone oxidation of Ta forms an ultrathin Ta2O5/TaOx bilayer enabling resistive switching with a vertical defect gradient. A stoichiometric surface layer over an oxygen‐deficient sublayer promotes localized filament nucleation near the top interface, enabling low‐voltage operation, and reduced cycle‐to‐cycle variability.
Seunghoon Yang   +11 more
wiley   +1 more source

Multimode Oxide‐Based Optoelectronic Memtransistor for In‐Sensor Vision Processing

open access: yesAdvanced Functional Materials, EarlyView.
A multimode optoelectronic memtransistor (OEMT) is demonstrated for vision explainable artificial intelligence (VXAI) hardware. By integrating optical sensing, electrical masking, and non‐volatile memory, the device enables key operations required for generating saliency information.
Min Gu Lee   +10 more
wiley   +1 more source

Modulator-free quadrature amplitude modulation signal synthesis

open access: yes, 2014
The ability to generate high-speed on-off-keyed telecommunication signals by directly modulating a semiconductor laser’s drive current was one of the most exciting prospective applications of the nascent field of laser technology throughout the 1960s ...
Kelly, Brian   +6 more
core   +1 more source

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