Results 51 to 60 of about 6,709 (184)

On the Concatenations of Polar Codes and Non-Binary LDPC Codes

open access: yesIEEE Access, 2018
An interleaved concatenation scheme of polar codes with non-binary low-density parity check (NBLDPC) codes is proposed in this paper to improve the error-correcting performance of polar codes with finite code length. The information blocks of inner polar
Qingping Yu   +5 more
doaj   +1 more source

A Low-Complexity Sorting Network for a Fast List Polar Decoder

open access: yesIEEE Access, 2023
Fast list decoding algorithms for polar codes have been proposed to achieve low latency and high error correction performance. In the Rate-1 and SPC nodes of fast list decoding, a high-complexity sorter is required if multiple bits are to be decoded ...
Yongje Lee   +3 more
doaj   +1 more source

Partitioned List Decoding of Polar Codes: Analysis and Improvement of Finite Length Performance

open access: yes, 2017
Polar codes represent one of the major recent breakthroughs in coding theory and, because of their attractive features, they have been selected for the incoming 5G standard.
Gross, Warren J.   +4 more
core   +1 more source

Retinal Vessel Segmentation: A Comprehensive Review From Classical Methods to Deep Learning Advances (1982–2025)

open access: yesAdvanced Intelligent Systems, EarlyView.
Four decades of retinal vessel segmentation research (1982–2025) are synthesized, spanning classical image processing, machine learning, and deep learning paradigms. A meta‐analysis of 428 studies establishes a unified taxonomy and highlights performance trends, generalization capabilities, and clinical relevance.
Avinash Bansal   +6 more
wiley   +1 more source

Fast Simplified Successive-Cancellation List Decoding of Polar Codes [PDF]

open access: yes2017 IEEE Wireless Communications and Networking Conference Workshops (WCNCW), 2017
Polar codes are capacity achieving error correcting codes that can be decoded through the successive-cancellation algorithm. To improve its error-correction performance, a list-based version called successive-cancellation list (SCL) has been proposed in the past, that however substantially increases the number of time-steps in the decoding process. The
Seyyed Ali Hashemi   +2 more
openaire   +2 more sources

Efficient Sorting Architecture for List-Fast-SSC Decoding of Polar Codes

open access: yesIEEE Access, 2018
Polar codes have been proven to achieve the symmetric capacity of memoryless channel. Compared with a successive cancellation list decoder, list-Fast simplified-successive cancellation generates more candidate paths, which leads to more resource costs ...
Xiaojun Zhang   +4 more
doaj   +1 more source

Error-Aware SCFlip Decoding of Polar Codes

open access: yesIEEE Access, 2020
The successive-cancellation flip (SCFlip) decoder and its variants provide a significant coding gain with the average complexity practically identical to that of the successive cancellation (SC) decoder in a wide range of signal-to-noise ratios (SNRs ...
Daeyeol Yang, Kyeongcheol Yang
doaj   +1 more source

AI‐Assisted IoT‐Enabled ECG Monitoring: Integrating Foundational and Generative AI Tools for Sustainable Smart Healthcare—Recent Trends

open access: yesAI &Innovation, EarlyView.
ABSTRACT The rapid evolution of the Internet of Things (IoT) has significantly advanced the field of electrocardiogram (ECG) monitoring, enabling real‐time, remote, and patient‐centric cardiac care. This paper presents a comprehensive survey of AI assisted IoT‐based ECG monitoring systems, focusing on the integration of emerging technologies such as ...
Amrita Choudhury   +2 more
wiley   +1 more source

Belief Propagation Decoding of Polar Codes on Permuted Factor Graphs

open access: yes, 2018
We show that the performance of iterative belief propagation (BP) decoding of polar codes can be enhanced by decoding over different carefully chosen factor graph realizations.
Brink, Stephan ten   +3 more
core   +1 more source

Sampling Biases in Daily Average Temperatures From Greenland Climate Records

open access: yesInternational Journal of Climatology, EarlyView.
Biases are introduced in the calculation of daily average temperatures due to uneven sampling times for the investigated weather station network in Greenland. The figure shows the network, an example of a daily temperature cycle with daily averages based on all or only two observations and an overview of how the number of observations per day changes ...
Dina Rapp   +4 more
wiley   +1 more source

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