Results 61 to 70 of about 92,025 (163)
Low latency low power bit flipping algorithms for LDPC decoding [PDF]
, 2010 Low Density Parity Check (LDPC) codes have been adopted in a number of wired and wireless communication standards due to their improved error correcting ability and relatively simple decoder structure.
Koçak, T +11 more
core +1 more source
Efficient Helicopter-Satellite Communication Scheme Based on Check-Hybrid LDPC Coding
Tsinghua Science and Technology, 2018 When implementing helicopter-satellite communications, periodical interruption of the received signal is a challenging problem because the communication antenna is intermittently blocked by the rotating blades of the helicopter.
Ping Wang, Liuguo Yin, Jianhua Lu
doaj +1 more source
IEEE Access, 2020 Considering code-based cryptography, quasi-cyclic low-density parity-check (QC-LDPC) codes are foreseen as one of the few solutions to design post-quantum cryptosystems.
Davide Zoni +2 more
doaj +1 more source
A cyclic‐shift based method for counting cycles of quasi‐cyclic LDPC codes
Electronics Letters, Volume 60, Issue 2, January 2024.This paper presents some new necessary and sufficient conditions for the existence of cycles with arbitrary lengths and proposes a simple and novel method for counting cycles of QC‐LDPC codes based on the improved condition. Compared with the existing methods, the presented method is effective and feasible and can enumerate cycles of QC‐LDPC codes in a
Hengzhou Xu +5 more
wiley +1 more source
Double-Hamming based QC LDPC codes with large minimum distance [PDF]
, 2011 A new method using Hamming codes to construct base matrices of (J, K)-regular LDPC convolutional codes with large free distance is presented. By proper labeling the corresponding base matrices and tailbiting these parent convolutional codes to given ...
Kudryashov, Boris, +12 more
core +1 more source
Counting short cycles of QC‐LDPC codes in base graph
Electronics Letters, Volume 60, Issue 2, January 2024.Here, a method for using the base matrix to count the number of short cycles of quasi‐cyclic low‐density parity‐check codes is proposed. The time complexity of the proposed algorithm is not directly related to the length of the codes, but only to the number of edges in the base graph. Moreover, as the lifting degree of the codes increases, the proposed
Liqian Wang +3 more
wiley +1 more source
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
doaj +1 more source
Novel construction of QC-LDPC codes with modified 2-D GRS codes
Tongxin xuebao, 2015 The construction method for QC-LDPC (quasi-cyclic low density parity-check) code with modified two-dimensional generalized reed-solomon (2-D GRS) code is proposed using the generator polynomial of GRS code,so thus the constructed code can have better ...
Ming ZHAO, Xiao-lin ZHANG
doaj +2 more sources
A Reaction Attack on the QC-LDPC McEliece Cryptosystem [PDF]
, 2017 Guo et al. recently presented a reaction attack against the QC-MDPC McEliece cryptosystem. Their attack is based on the observation that when a bit-flipping decoding algorithm is used in the QC-MDPC McEliece, then there exists a dependence between the ...
Pavol Zajac +5 more
core +2 more sources