Results 61 to 70 of about 250 (178)
Low Power QC-LDPC Decoder Based on Token Ring Architecture
Energies, 2020 The article presents an implementation of a low power Quasi-Cyclic Low-Density Parity-Check (QC-LDPC) decoder in a Field Programmable Gate Array (FPGA) device. The proposed solution is oriented to a reduction in dynamic energy consumption.
Mateusz Kuc +2 more
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Optimization of NB QC-LDPC Block Codes and Their Performance Analysis
CoRR, 2020 26 ...
Irina E. Bocharova +4 more
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Construction Method of QC-LDPC Codes with Big Girth for Fast Encoding [PDF]
Jisuanji gongcheng, 2018 The sub-matrices on both diagonals of the right half of the check matrix are unit matrices.Existence of the deterministic unit matrix not only destroys the randomness of Quasie Cyclic-Low Density Parity Check(QC-LDPC) code,it leads to a certain loss of ...
PENG Haiying,YANG Jian,SUN Lijun
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Multisource SWIPT-based coded cooperation:rate compatible codes and codeword splitting protocol
EURASIP Journal on Wireless Communications and Networking, 2020 To achieve a high reliable and energy-saving green communication, we investigate a multisource simultaneous wireless information and power transfer (SWIPT)-based coded cooperation where the relay can realize information decoding and energy harvesting ...
Shunwai Zhang, Lingjun Kong, Jun Li
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A reduction in the search space of QC-LDPC codes with girth 8
Journal of Algebraic Systems, 2020 Summary: In this paper, we define a structure to obtain exponent matrices of girth-8 QC-LDPC codes with column weight 3. Using the difference matrices introduced by Amirzade et al., we investigate necessary and sufficient conditions which result in a Tanner graph with girth 8.
Amirzade, F. +2 more
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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
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IEEE Open Journal of the Communications SocietyAs data storage demands continue to grow, ensuring the reliability of NAND flash devices after a large number of Program/Erase (P/E) cycles have elapsed has become a critical requirement.
G. Achala +3 more
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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 +3 more
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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.
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