Results 91 to 100 of about 21,382 (243)

Optimized Puncturing of the Check Matrix for Rate-Compatible LDPC Codes

MATEC Web of Conferences, 2018
In the wireless communication system, it is necessary to change the transmitted code word or code rate in real time according to the channel environment, designing and implementing rate compatible codes is of great practical significance.
Zhang Liang, Meng Jiahui, Zhao Danfeng
doaj   +1 more source

Mutual Information-Maximizing Quantized Belief Propagation Decoding of Regular LDPC Codes

, 2020
In mutual information-maximizing lookup table (MIM-LUT) decoding of low-density parity-check (LDPC) codes, table lookup operations are used to replace arithmetic operations.
Cai, Kui, He, Xuan, Mei, Zhen
core  

Topology-Aware Exploration of Energy-Based Models Equilibrium: Toric QC-LDPC Codes and Hyperbolic MET QC-LDPC Codes

CoRR
16 pages, 29 figures.
Vasiliy Usatyuk, Denis Sapozhnikov, Sergey Egorov   +2 more
openaire   +2 more sources

Girth Analysis of Tanner’s (3, 17)-Regular QC-LDPC Codes Based on Euclidean Division Algorithm

IEEE Access, 2019
In this paper, the girth distribution of the Tanner’s (3, 17)-regular quasi-cyclic LDPC (QC-LDPC) codes with code length $17p$ is determined, where $p$ is a prime and $p \equiv 1~(\bmod ~51)$ .
Hengzhou Xu, Yake Duan, Xiaoxiao Miao, Hai Zhu   +3 more
doaj   +1 more source

Low Complexity Encoder of High Rate Irregular QC-LDPC Codes for Partial Response Channels

Advances in Electrical and Computer Engineering, 2011
High rate irregular QC-LDPC codes based on circulant permutation matrices, for efficient encoder implementation, are proposed in this article. The structure of the code is an approximate lower triangular matrix.
IMTAWIL, V., MEESOMBOON, A., KUPIMAI, M.
doaj   +1 more source

Lower Bounds on the Lifting Degree of QC-LDPC Codes by Difference Matrices

IEEE Access, 2018
In this paper, we define two “difference matrices” which correspond to an exponent matrix. We present necessary and sufficient conditions for these difference matrices to have quasi-cyclic low-density parity-check codes (QC-LDPC) codes with
Farzane Amirzade, Mohammad-Reza Sadeghi
doaj   +1 more source

Explicit construction of girth-eight QC-LDPC codes and its application in CRT method

Tongxin xuebao, 2012
For arbitrary code lengths of the form PL(P≥3L²/4+L-1),a new family of (4,L)-regular quasi-cyclic (QC) low-density parity-check (LDPC) codes was proposed explicitly with girth ight.Employing the new code as a component code in the ...
Guo-hua ZHANG, Rong SUN, Xin-mei WANG
doaj   +2 more sources

Short Blocklength Nonbinary Raptor-Like LDPC Coding Systems Design and Simulation

IEEE Access
This paper explores an efficient rate-adaptive error correction coding scheme with a nonbinary (NB) $\mathrm {GF}(2^{q})$ extension of Raptor-like (RL) quasi-cyclic (QC) subclass of Low-Density Parity-Check (LDPC) codes.
Jakub Hyla, Wojciech Sulek
doaj   +1 more source

Design and Implementation of a Highly Efficient Quasi-Cyclic Low-Density Parity-Check Transceiving System Using an Overlapping Decoder. [PDF]

Sensors (Basel), 2023
Sun Y, Zhao L, Li J, Zhang Z, Yang X, Bu X.   +5 more
europepmc   +1 more source

Quantum LDPC Codes Based on Cocyclic Block Matrices. [PDF]

Entropy (Basel), 2023
Li Y, Guo Y.
europepmc   +1 more source