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481 Results Found

  • Feature Paper
  • Article
  • Open Access
4 Citations
2,819 Views
17 Pages

Threshold Computation for Spatially Coupled Turbo-Like Codes on the AWGN Channel

  • Muhammad Umar Farooq,
  • Alexandre Graell i Amat and
  • Michael Lentmaier

19 February 2021

In this paper, we perform a belief propagation (BP) decoding threshold analysis of spatially coupled (SC) turbo-like codes (TCs) (SC-TCs) on the additive white Gaussian noise (AWGN) channel. We review Monte-Carlo density evolution (MC-DE) and efficie...

  • Article
  • Open Access
488 Views
20 Pages

A Threshold Selection Method in Code Plagiarism Checking Function for Code Writing Problem in Java Programming Learning Assistant System Considering AI-Generated Codes

  • Perwira Annissa Dyah Permatasari,
  • Mustika Mentari,
  • Safira Adine Kinari,
  • Soe Thandar Aung,
  • Nobuo Funabiki,
  • Htoo Htoo Sandi Kyaw and
  • Khaing Hsu Wai

26 December 2025

To support novice learners, the Java programming learning assistant system (JPLAS) has been developed with various features. Among them, code writing problem (CWP) assigns writing an answer code that passes a given test code. The correctness of an an...

  • Article
  • Open Access
1,399 Views
26 Pages

Threshold Successive Cancellation Flip Decoding Algorithm for Polar Codes: Design and Performance

  • Zhicheng Liu,
  • Liuquan Yao,
  • Shuai Yuan,
  • Guiying Yan,
  • Zhiming Ma and
  • Yuting Liu

12 June 2025

In this paper, we propose the threshold successive cancellation flip (Th-SCF) decoding algorithm for polar codes, which enhances the performance of the SC decoder while maintaining low complexity. Theoretical analysis reveals that Th-SCF asymptotical...

  • Article
  • Open Access
2,402 Views
19 Pages

24 December 2022

In some satellite Internet of Things (IoT) devices with terrain shielding, the qualities of the direct source-destination (S-D) channel are poor, requiring cooperative communications with multi-relays to be employed. In order to solve error propagati...

  • Article
  • Open Access
209 Views
24 Pages

This paper proposes a resource optimized cascaded quantum surface repetition code architecture integrated with a Union Find (UF) enhanced hybrid decoder, which suppresses biased noise and improves the scalability of quantum error correction through s...

  • Article
  • Open Access
1 Citations
3,139 Views
19 Pages

21 April 2025

Quantum error correction codes (QECCs) are essential for reliable quantum computing as they protect quantum states against noise and errors. Limited research has explored the resilience of QECCs to biased noise, critical for selecting optimal codes....

  • Article
  • Open Access
10 Citations
9,483 Views
18 Pages

27 August 2021

We provide a comprehensive and in-depth overview of the various approaches applicable to the recognition of Data Matrix codes in arbitrary images. All presented methods use the typical “L” shaped Finder Pattern to locate the Data Matrix code in the i...

  • Feature Paper
  • Article
  • Open Access
3 Citations
2,457 Views
14 Pages

Role of the Product λ(0)ρ(1) in Determining LDPC Code Performance

  • Francesca Vatta,
  • Fulvio Babich,
  • Flavio Ellero,
  • Matteo Noschese,
  • Giulia Buttazzoni and
  • Massimiliano Comisso

10 December 2019

The objective of this work is to analyze the importance of the product λ ( 0 ) ρ ( 1 ) in determining low density parity check (LDPC) code performance, as far as its influence on the weight distribution func...

  • Article
  • Open Access
7 Citations
3,305 Views
11 Pages

A Weighted Turbo Equalized Multi-Band Underwater Wireless Acoustic Communications

  • Hui-Su Lee,
  • Chang-Uk Baek,
  • Ji-Won Jung and
  • Wan-Jin Kim

20 September 2018

The multi-band UWAS (Underwater Wireless Acoustic Sensor) communication techniques are effective in terms of performance and throughput efficiency because they can overcome selective frequency fading by allocating the same data to different frequency...

  • Article
  • Open Access
4 Citations
1,792 Views
13 Pages

23 February 2024

Polar codes have established themselves as a cornerstone in modern error correction coding due to their capacity-achieving properties and practical implementation advantages. However, decoding polar codes remains a computationally intensive task. In...

  • Article
  • Open Access
1 Citations
1,669 Views
11 Pages

31 July 2023

Although extensive optimization of encoding and decoding schemes for joint source-channel coding (JSCC) systems has been conducted, efficient optimization schemes are still required for designing and optimizing the linking matrix between variable nod...

  • Article
  • Open Access
5 Citations
3,842 Views
17 Pages

Channel Modeling and Quantization Design for 3D NAND Flash Memory

  • Cheng Wang,
  • Zhen Mei,
  • Jun Li,
  • Feng Shu,
  • Xuan He and
  • Lingjun Kong

21 June 2023

As the technology scales down, two-dimensional (2D) NAND flash memory has reached its bottleneck. Three-dimensional (3D) NAND flash memory was proposed to further increase the storage capacity by vertically stacking multiple layers. However, the new...

  • Article
  • Open Access
8 Citations
3,691 Views
13 Pages

A Threshold-Based Max-log-MPA Low Complexity Multiuser Detection Algorithm

  • Guanghua Zhang,
  • Zonglin Gu,
  • Qiannan Zhao,
  • Jingqiu Ren and
  • Weidang Lu

13 February 2020

Sparse Code Multiple Access (SCMA) technology is a new multiple access scheme based on non-orthogonal spread spectrum technology, which was proposed by Huawei in 2014. In the algorithm application of this technology, the original Message Passing Algo...

  • Article
  • Open Access
3 Citations
1,526 Views
11 Pages

16 June 2023

A coal-rock dynamic disaster is a rapid instability and failure process with dynamic effects and huge disastrous consequences that occurs in coal-rock mass under mining disturbance. Disasters lead to catastrophic consequences, such as mine collapse,...

  • Article
  • Open Access
2,226 Views
20 Pages

13 August 2025

Quantum error correction (QEC) is crucial for achieving reliable quantum computation. Among topological QEC codes, color codes can correct bit-flip and phase-flip errors simultaneously, enabling efficient resource utilization. However, existing decod...

  • Article
  • Open Access
5 Citations
3,364 Views
24 Pages

12 October 2018

Different challenges arise while detecting deficient software source code. Usually a large number of potentially problematic entities are identified when an individual software metric or individual quality aspect is used for the identification of def...

  • Article
  • Open Access
12 Citations
5,512 Views
15 Pages

13 March 2020

In the cableless seafloor observation networks (SONs), the links among network nodes rely on underwater acoustic communication (UAC). Due to the energy constraint and the high-reliability requirement of the cableless SONs, the noncoherent UAC has bee...

  • Review
  • Open Access
3 Citations
4,725 Views
20 Pages

Stochastic and Temporal Models of Olfactory Perception

  • Thomas P. Hettinger and
  • Marion E. Frank

Olfactory systems typically process signals produced by mixtures composed of very many natural odors, some that can be elicited by single compounds. The several hundred different olfactory receptors aided by several dozen different taste receptors ar...

  • Article
  • Open Access
7 Citations
3,890 Views
11 Pages

12 June 2022

Aiming at the practical constraints of high resource occupancy and complex calculations in the existing Spike Neural Network (SNN) image classification model, in order to seek a more lightweight and efficient machine vision solution, this paper propo...

  • Article
  • Open Access
17 Citations
5,391 Views
17 Pages

Discrete Wavelet Packet Transform-Based Industrial Digital Wireless Communication Systems

  • Safa Saadaoui,
  • Mohamed Tabaa,
  • Fabrice Monteiro,
  • Mouhamad Chehaitly and
  • Abbas Dandache

7 March 2019

The industrial internet of things (IIoT) known as industry 4.0, is the use of internet of things technologies, via the Wireless Sensor Network (WSN), to enhance manufacturing and industrial processes. It incorporates machine learning and big data tec...

  • Review
  • Open Access
3 Citations
3,092 Views
12 Pages

A Survey on Old and New Approximations to the Function ϕ(x) Involved in LDPC Codes Density Evolution Analysis Using a Gaussian Approximation

  • Francesca Vatta,
  • Alessandro Soranzo,
  • Massimiliano Comisso,
  • Giulia Buttazzoni and
  • Fulvio Babich

Low Density Parity Check (LDPC) codes are currently being deeply analyzed through algorithms that require the capability of addressing their iterative decoding convergence performance. Since it has been observed that the probability distribution func...

  • Article
  • Open Access
2 Citations
4,753 Views
24 Pages

Optimal Tracking of QR Inspired LEA Using Particle Filter for Secured Visual MIMO Communication Based Vehicular Network

  • Manikandan Chinnusamy,
  • Rakesh Kumar Sidharthan,
  • Venkatesh Sivanandam,
  • Sai Siva Satwik Kommi,
  • Chandrasekar Mallari Rao and
  • Neelamegam Periasamy

Line of sight (LoS) and security are the fundamental requirement for any secure visual MIMO communication based vehicular networks. Uneven speed, irregular terrains, and uncertain appearance of obstacles disgrace LoS between the visual multiple-input...

  • Technical Note
  • Open Access
16 Citations
3,760 Views
17 Pages

25 June 2021

Landslide detection and warning systems are important tools for mitigation of potential hazards in landslide prone areas. Traditionally, warning systems for shallow landslides have been informed by rainfall intensity-duration thresholds. More recent...

  • Article
  • Open Access
38 Citations
18,367 Views
19 Pages

QR (quick response) Codes are one of the most popular types of two-dimensional (2D) matrix codes currently used in a wide variety of fields. Two-dimensional matrix codes, compared to 1D bar codes, can encode significantly more data in the same area....

  • Article
  • Open Access
1,133 Views
13 Pages

MITS: A Quantum Sorcerer’s Stone for Designing Surface Codes

  • Avimita Chatterjee,
  • Debarshi Kundu and
  • Swaroop Ghosh

29 July 2025

In the evolving field of quantum computing, optimizing Quantum Error Correction (QEC) parameters is crucial due to the varying types and amounts of physical noise across quantum computers. Traditional simulators use a forward paradigm to derive logic...

  • Article
  • Open Access
2 Citations
3,179 Views
14 Pages

An Experimentally Validated CFD Code to Design Coandă Effect Screen Structures

  • Thomas Senfter,
  • Manuel Berger,
  • Markus Schweiberer,
  • Serafin Knitel and
  • Martin Pillei

7 May 2023

Coandă effect screen structures are used to protect hydropower turbines in mountainous regions from impurities of different sizes. To save time during the design phase, computational fluid dynamics simulations (CFD) can support experimental inve...

  • Article
  • Open Access
24 Citations
10,129 Views
16 Pages

4 November 2020

QR (Quick Response) codes are one of the most famous types of two-dimensional (2D) matrix barcodes, which are the descendants of well-known 1D barcodes. The mobile robots which move in certain operational space can use information and landmarks from...

  • Article
  • Open Access
5 Citations
3,226 Views
18 Pages

19 February 2021

Sparse Coding (SC) has been widely studied and shown its superiority in the fields of signal processing, statistics, and machine learning. However, due to the high computational cost of the optimization algorithms required to compute the sparse featu...

  • Article
  • Open Access
17 Citations
4,804 Views
24 Pages

25 September 2023

Of late, image compression has become crucial due to the rising need for faster encoding and decoding. To achieve this objective, the present study proposes the use of canonical Huffman coding (CHC) as an entropy coder, which entails a lower decoding...

  • Article
  • Open Access
3 Citations
3,408 Views
23 Pages

Image Segmentation Methods for Subpicture Partitioning in the VVC Video Encoder

  • Natalia Panagou,
  • Panagiotis Belememis and
  • Maria Koziri

The emergence of the new generation video coding standard, Versatile Video Coding (VVC), has brought along novel features rendering the new standard more efficient and flexible than its predecessors. Aside from efficient compression of 8 k or higher...

  • Article
  • Open Access
8 Citations
4,000 Views
13 Pages

27 August 2023

Topological quantum error-correcting codes are an important tool for realizing fault-tolerant quantum computers. Heavy hexagonal coding is a new class of quantum error-correcting coding that assigns physical and auxiliary qubits to the vertices and e...

  • Article
  • Open Access
5 Citations
1,956 Views
18 Pages

14 December 2022

The H.266/Versatile Video Coding (VVC) standard poses a great challenge for encoder design due to its high computational complexity and long encoding time. In this paper, the fast partitioning decision of coding blocks is investigated to reduce the c...

  • Article
  • Open Access
1 Citations
1,811 Views
16 Pages

Using the source residual redundancy in a joint source and channel coded modulation (JSCCM) system to achieve a shaping gain has proven to be a good solution for probabilistic amplitude shaping. In a JSCCM system, rate-compatible source codes are ess...

  • Article
  • Open Access
7 Citations
2,436 Views
16 Pages

A Method to Reduce the Intra-Frame Prediction Complexity of HEVC Based on D-CNN

  • Ting Wang,
  • Geng Wei,
  • Huayu Li,
  • ThiOanh Bui,
  • Qian Zeng and
  • Ruliang Wang

Among a series of video coding standards jointly developed by ITU-T, VCEG, and MPEG, high-efficiency video coding (HEVC) is one of the most widely used video coding standards today. Therefore, it is still necessary to further reduce the coding comple...

  • Article
  • Open Access
317 Views
21 Pages

Near-Optimal Decoding Algorithm for Color Codes Using Population Annealing

  • Fernando Martínez-García,
  • Francisco Revson F. Pereira and
  • Pedro Parrado-Rodríguez

12 January 2026

The development and use of large-scale quantum computers relies on integrating quantum error-correcting (QEC) schemes into the quantum computing pipeline. A fundamental part of the QEC protocol is the decoding of the syndrome to identify a recovery o...

  • Article
  • Open Access
2 Citations
4,618 Views
16 Pages

26 February 2019

In this paper, we propose a low-complexity ordered statistics decoding (OSD) algorithm called threshold-based OSD (TH-OSD) that uses a threshold on the discrepancy of the candidate codewords to speed up the decoding of short polar codes. To determine...

  • Article
  • Open Access
7 Citations
3,870 Views
17 Pages

Code Plagiarism Checking Function and Its Application for Code Writing Problem in Java Programming Learning Assistant System

  • Ei Ei Htet,
  • Khaing Hsu Wai,
  • Soe Thandar Aung,
  • Nobuo Funabiki,
  • Xiqin Lu,
  • Htoo Htoo Sandi Kyaw and
  • Wen-Chung Kao

17 January 2024

A web-based Java programming learning assistant system (JPLAS) has been developed for novice students to study Java programming by themselves while enhancing code reading and code writing skills. One type of the implemented exercise problem is code w...

  • Article
  • Open Access
1,287 Views
26 Pages

17 October 2024

As internet speeds increase and user demands for video quality grow, video coding standards continue to evolve. H.266/Versatile Video Coding (VVC), as the new generation of video coding standards, further improves compression efficiency but also brin...

  • Article
  • Open Access
2 Citations
1,944 Views
18 Pages

Low-Complexity Fast CU Classification Decision Method Based on LGBM Classifier

  • Yanjun Wang,
  • Yong Liu,
  • Jinchao Zhao and
  • Qiuwen Zhang

At present, the latest video coding standard is Versatile Video Coding (VVC). Although the coding efficiency of VVC is significantly improved compared to the previous generation, standard High-Efficiency Video Coding (HEVC), it also leads to a sharp...

  • Article
  • Open Access
6 Citations
6,318 Views
18 Pages

Empirical Assessment of the Quality of MVC Web Applications Returned by xGenerator

  • Gaetanino Paolone,
  • Romolo Paesani,
  • Martina Marinelli and
  • Paolino Di Felice

4 February 2021

Many scholars have reported that the adoption of Model Driven Engineering (MDE) in the industry is still marginal. Real-life case studies, completed with convincing empirical data about the quality of the developed source code, is an effective way to...

  • Article
  • Open Access
1 Citations
1,776 Views
19 Pages

Three-Dimensional High-Efficiency Video Coding (3D-HEVC) has been extensively researched due to its efficient compression and deep image representation, but encoding complexity continues to pose a difficulty. This is mainly attributed to redundancy i...

  • Article
  • Open Access
3 Citations
4,706 Views
13 Pages

Fifth generation (5G) is a new generation mobile communication system developed for the growing demand for mobile communication. Channel coding is an indispensable part of most modern digital communication systems, for it can improve the transmission...

  • Article
  • Open Access
3 Citations
2,463 Views
16 Pages

22 October 2022

Global Navigation Satellite System (GNSS) signal quality, type of receiver equipment, and external environment can cause GNSS observations to be anomalous, and these anomalies are sometimes reflected in GNSS pseudorange observations rather than phase...

  • Feature Paper
  • Article
  • Open Access
1,028 Views
18 Pages

Implementing Quantum Secret Sharing on Current Hardware

  • Jay Graves,
  • Mike Nelson and
  • Eric Chitambar

23 September 2025

Quantum secret sharing is a cryptographic scheme that enables the secure storage and reconstruction of quantum information. While the theory of secret sharing is mature in its development, relatively few studies have explored the performance of quant...

  • Article
  • Open Access
363 Views
17 Pages

Perception-Driven and Object-Aware Fast MTT Partitioning for H.266/VVC: A Saliency-Guided Complexity Reduction Framework

  • Chih-Ying Lin,
  • Jia-Yi Yeh,
  • Yu-Cheng Chen,
  • Yi-Fan Li,
  • Chih-Ming Lien,
  • Mei-Juan Chen and
  • Chia-Hung Yeh

27 December 2025

The H.266/Versatile Video Coding (VVC) standard was developed to address the growing demand for compressing ultra-high-definition video content, supporting resolutions ranging from 4K to 8K and beyond. H.266/VVC improves coding efficiency by introduc...

  • Article
  • Open Access
1 Citations
3,060 Views
14 Pages

Error Probability Mitigation in Quantum Reading Using Classical Codes

  • Francisco Revson Fernandes Pereira and
  • Stefano Mancini

21 December 2021

A general framework describing the statistical discrimination of an ensemble of quantum channels is given by the name quantum reading. Several tools can be applied in quantum reading to reduce the error probability in distinguishing the ensemble of c...

  • Article
  • Open Access
4 Citations
3,049 Views
11 Pages

6 September 2019

Early-termination techniques for a belief-propagation (BP) decoder of polar codes can improve the decoding throughput by finishing a decoding iteration when an early-termination condition is satisfied. In the BP decoders, the early-termination condit...

  • Article
  • Open Access
10 Citations
2,182 Views
19 Pages

31 January 2023

Large matrix multiplications commonly take place in large-scale machine-learning applications. Often, the sheer size of these matrices prevent carrying out the multiplication at a single server. Therefore, these operations are typically offloaded to...

  • Article
  • Open Access
2 Citations
2,102 Views
18 Pages

25 January 2024

To predict and explore the return period wind speed distribution in Beijing urban area, based on the short-term measured wind speed record, the measured independent storm peak samples are extracted and the Monte–Carlo numerical simulation metho...

  • Article
  • Open Access
9 Citations
9,379 Views
29 Pages

A JND-Based Pixel-Domain Algorithm and Hardware Architecture for Perceptual Image Coding

  • Zhe Wang,
  • Trung-Hieu Tran,
  • Ponnanna Kelettira Muthappa and
  • Sven Simon

This paper presents a hardware efficient pixel-domain just-noticeable difference (JND) model and its hardware architecture implemented on an FPGA. This JND model architecture is further proposed to be part of a low complexity pixel-domain perceptual...

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