Results 61 to 70 of about 68,541 (279)

Woven Graph Codes: Asymptotic Performances and Examples

open access: yes, 2008
Constructions of woven graph codes based on constituent block and convolutional codes are studied. It is shown that within the random ensemble of such codes based on $s$-partite, $s$-uniform hypergraphs, where $s$ depends only on the code rate, there ...
Bocharova, Irina E.   +3 more
core   +3 more sources

Two‐Dimensional Reconfigurable Photodiode for In‐Sensor Color Filtering and Spectral Logic

open access: yesAdvanced Materials, EarlyView.
By harnessing the photodoping of different aggregates, the device exhibits wavelength‐dependent volatile‐to‐nonvolatile photoresponses that can be reconfigured via bias modulation. This enables in‐sensor color filtering and spectral‐encrypted information processing, eliminating reliance on external optical filters or post‐processing algorithms ...
Xiaokun Guo   +7 more
wiley   +1 more source

Minimal-memory realization of pearl-necklace encoders of general quantum convolutional codes

open access: yes, 2010
Quantum convolutional codes, like their classical counterparts, promise to offer higher error correction performance than block codes of equivalent encoding complexity, and are expected to find important applications in reliable quantum communication ...
F. Gaitan   +12 more
core   +1 more source

A Scalable Perovskite Platform With Multi‐State Photoresponsivity for In‐Sensor Saliency Detection

open access: yesAdvanced Materials, EarlyView.
A scalable in‐sensor computing platform (32 × 32 array) with ultra‐low variability is developed by incorporating ferroelectric copolymers into halide perovskite thin films. These devices achieve 1000 programmable photoresponsivity states and high thermal reliability.
Xuechao Xing   +10 more
wiley   +1 more source

ANÁLISIS DEL DESEMPEÑO DE ESQUEMAS CODIFICACIÓN TURBO Y CONVOLUCIONAL EN EL ENLACE DE BAJADA DE LTE-ADVANCED

open access: yesRevista Politécnica, 2017
This article presents a comparative performance analysis of the turbo and convolutional encoders applicable to LTE-A Downlink, access technology that is booming in the region.
Juan Rodríguez   +3 more
doaj   +1 more source

Duality of Channel Encoding and Decoding - Part I: Rate-1 Binary Convolutional Codes

open access: yes, 2016
In this paper, we revisit the forward, backward and bidirectional Bahl-Cocke-Jelinek-Raviv (BCJR) soft-input soft-output (SISO) maximum a posteriori probability (MAP) decoding process of rate-1 binary convolutional codes.
Bahl   +7 more
core   +1 more source

End‐to‐End Sensing Systems for Breast Cancer: From Wearables for Early Detection to Lab‐Based Diagnosis Chips

open access: yesAdvanced Materials Technologies, EarlyView.
This review explores advances in wearable and lab‐on‐chip technologies for breast cancer detection. Covering tactile, thermal, ultrasound, microwave, electrical impedance tomography, electrochemical, microelectromechanical, and optical systems, it highlights innovations in flexible electronics, nanomaterials, and machine learning.
Neshika Wijewardhane   +4 more
wiley   +1 more source

Construction of a new class of (2k, k, 1) convolutional codes

open access: yesTongxin xuebao, 2014
A new class of (2k,k,1) convolutional codes are created by combining double cyclic codes and (2,1,1) convolu-tional codes, and also a new method for creation long codes with short ones was proposed.
Cheng-chang ZHENG, Wan-quan PENG, Bo WEI
doaj   +2 more sources

Asymptotically good convolutional codes [PDF]

open access: yesLinear and Multilinear Algebra, 2018
In this paper, we construct new sequences of asymptotically good convolutional codes. These sequences are obtained from sequences of transitive, self-orthogonal and self-dual block codes that attain the Tsfasman-Vladut-Zink bound. Furthermore, by applying the techniques of expanding, extending, puncturing, direct sum, the |u|u+v| construction and the ...
openaire   +2 more sources

Multilevel Optical Programming of Intrinsic Vacancies in Solution‐Processed MoS2 Films for Retinomorphic Color Differentiation

open access: yesAdvanced Optical Materials, EarlyView.
Solution‐processed MoS2 films with intrinsic sulfur‐vacancy traps are used to integrate light sensing and memory in a simple two‐terminal pixel. Successive optical pulses program persistent, multilevel conductance states, while oxygen exposure enables rapid erasure.
Jihyun Kim   +8 more
wiley   +1 more source

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