Results 11 to 20 of about 1,613 (180)
A Time Sharing Hybrid Probabilistic Shaping Scheme for Nonbinary LDPC Codes
IEEE Access, 2020 A time sharing (TS) hybrid probabilistic shaping (HPS) scheme for nonbinary (NB) LDPC codes is proposed. For the conventional probabilistic shaping (CPS) scheme, the demodulator uses bit-metric decoding (BMD) for binary LDPC codes and NB LDPC codes ...
Zhanji Wu, Weimin Kang
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Efficient Design of Read Voltages and LDPC Codes in NAND Flash Memory Using Density Evolution
IEEE Access, 2023 Low-density parity-check (LDPC) codes play an important role in the reliability enhancement of commercial NAND flash memory. Unfortunately, due to the requirement of the reading speed of NAND flash memory, the LDPC decoder will not obtain precise soft ...
Chatuporn Duangthong +2 more
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Analysis and Optimization of a General Linking Matrix for JSCC Scheme Based on Double LDPC Codes
Entropy, 2023 A key component of the joint source-channel coding (JSCC) scheme based on double low-density parity-check (D-LDPC) codes is the introduction of a linking matrix between the source LDPC code and channel LDPC code, by which the decoding information ...
Qiwang Chen +3 more
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On the design of universal LDPC codes [PDF]
2008 IEEE International Symposium on Information Theory, 2008 5 pages, 2 figures, To appear in Proc.
Ali Sanaei +2 more
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Asymmetric quantum LDPC codes [PDF]
2008 IEEE International Symposium on Information Theory, 2008 5 pages, 1 figure, 1 table, to appear in the Proceedings of the 2008 IEEE International Symposium on Information ...
Pradeep Kiran Sarvepalli +2 more
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OpenCL/CUDA Algorithms for Parallel Decoding of any Irregular LDPC Code using GPU
Telfor Journal, 2019 This article provides a scalable parallel approach of an iterative LDPC decoder. The proposed approach can be implemented in applications supporting massive parallel computing. The proposed mapping is suitable for decoding any irregular LDPC code without
J. Broulim +3 more
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Binary Wyner-Ziv and CEO Problem Coding Under the Hamming Distortion Criterion [PDF]
International Journal of Industrial Electronics, Control and OptimizationIn this paper, we present a practical encoding and decoding scheme for the binary Wyner-Ziv problem based on graph-based codes. Our proposed scheme uses low-density generator-matrix (LDGM) codes in lossy source coding part and low-density parity-check ...
Mahdi Nangir
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ON THE CLASS OF ARRAY-BASED APM-LDPC CODES [PDF]
Journal of Algebraic Systems, 2021 We construct an explicit class of affine permutation matrix low-density parity-check (APM-LDPC) codes based on the array parity-check matrix by using two affine maps f (x) = x-1 and g(x) = 2x-1 on Z_m, where m is an odd prime number, with girth 6 and ...
A. Nassaj, A. R. Naghipour
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Randomly Punctured LDPC Codes [PDF]
IEEE Journal on Selected Areas in Communications, 2016 In this paper, we present a random puncturing analysis of low-density parity-check (LDPC) code ensembles. We derive a simple analytic expression for the iterative belief propagation (BP) decoding threshold of a randomly punctured LDPC code ensemble on the binary erasure channel (BEC) and show that, with respect to the BP threshold, the strength and ...
David G. M. Mitchell +3 more
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INCREASING THE WIRELESS SYSTEMS INFORMATION EFFICIENCY USING LDPC CODING
Information and Telecommunication Sciences, 2019 Background. LDPC codes research is performed in the paper. The influence of LDPC codes on channel information efficiency is studied in scope of MCS and the benefit of using LDPC codes is specified in digits as a result of research. Objective. The purpose
Leonid Uryvsky +2 more
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