Results 21 to 30 of about 29,520 (201)
An Efficient Construction Method for Quasi-Cyclic Low Density Parity Check Codes
IEEE Access, 2017 In this paper, we propose an optimized belief propagation (OBP) based progressive edge-growth (PEG) method for constructing quasi-cyclic low density parity check (QC-LDPC) codes. In this proposed method, Tanner graphs are built by progressively appending
Yiming Lei, Mingke Dong
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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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Constructions of symplectic LCD MDS codes from quasi-cyclic codes
Advances in Mathematics of Communications, 2022 Linear complementary dual (LCD) codes play an important role in data storage, communications systems and cryptography. In this paper, we construct some symplectic LCD codes from quasi-cyclic (QC) codes, and prove that these symplectic LCD codes with ...
Xia Huang, Jin Li, Shan Huang
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A construction of the high-rate regular quasi-cyclic LDPC codes
EURASIP Journal on Wireless Communications and Networking, 2019 In this paper, a scheme to construct the high-rate regular quasi-cyclic low-density parity-check (QC-LDPC) codes is developed based on the finite geometry low-density parity-check (LDPC) codes.
Qi Meng +3 more
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Linking Reversed and Dual Codes of Quasi-Cyclic Codes
IEICE Transactions on Fundamentals of Electronics Communications and Computer Sciences, 2022 SUMMARY It is known that quasi-cyclic (QC) codes over the finite field F 𝑞 correspond to certain F 𝑞 [ 𝑥 ] -modules. A QC code C is specified by a generator polynomial matrix 𝐺 whose rows generate C as an F 𝑞 [ 𝑥 ] -module.
R. T. Eldin, H. Matsui
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Constructing Large Girth QC Protograph LDPC Codes Based on PSD-PEG Algorithm
IEEE Access, 2017 For a given base graph, the lifted graph can be obtained by a copy-and-permute procedure. If the permutation is cyclic, the lifted graph corresponds to a quasi-cyclic (QC) protograph low-density parity-check (LDPC) code.
Xue-Qin Jiang +3 more
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Constructing LDPC Codes with Any Desired Girth
Sensors, 2021 In wireless sensor networks, the reliability of communication can be greatly improved by applying low-density parity-check (LDPC) codes. Algorithms based on progressive-edge-growth (PEG) pattern and quasi-cyclic (QC) pattern are the mainstream approaches
Chaohui Gao +3 more
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Construction of multiple-rate QC-LDPC codes using hierarchical row-splitting [PDF]
, 2016 In this letter, we propose an improved method called hierarchical row-splitting with edge variation for designing multiple-rate quasi-cyclic low-density parity-check (QC-LDPC) codes, which constructs lower-rate codes from a high-rate mother code by row ...
Wang, Qi, Wang, Zhaocheng, Zhao, Peiyao
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Ldpc Code Construction using Randomly Permutated Copies of Parity Check Matrix [PDF]
مجلة جامعة النجاح للأبحاث العلوم الطبيعية, 2018 A construction technique is proposed for low-density parity check (LDPC) codes. It uses a base parity check matrix designed from a ran-dom or constructed construction method as Gallager or Quasi-Cyclic LDPC (QC-LDPC) codes in sequence to get codes with ...
Amr lulu, Ammar Abu-Hudrouss
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Deriving Good LDPC Convolutional Codes from LDPC Block Codes [PDF]
, 2010 Low-density parity-check (LDPC) convolutional codes are capable of achieving excellent performance with low encoding and decoding complexity. In this paper we discuss several graph-cover-based methods for deriving families of time-invariant and time ...
Ali E. Pusane +4 more
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