Results 41 to 50 of about 1,775 (200)

A Note on the Girth of (3, 19)-Regular Tanner’s Quasi-Cyclic LDPC Codes

IEEE Access, 2021
In this article, we study the cycle structure of (3, 19)-regular Tanner’s quasi-cyclic (QC) LDPC codes with code length $19p$ , where $p$ is a prime and $p\equiv 1~(\bmod ~57)$ , and transform the conditions for the existence of cycles of ...
Manjie Zhou, Hai Zhu, Hengzhou Xu, Bo Zhang, Kaixuan Xie   +4 more
doaj   +1 more source

Efficient Search of Compact QC-LDPC and SC-LDPC Convolutional Codes with Large Girth

, 2018
We propose a low-complexity method to find quasi-cyclic low-density parity-check block codes with girth 10 or 12 and shorter length than those designed through classical approaches.
Baldi, Marco, Battaglioni, Massimo, Chiaraluce, Franco, Tadayon, Mohammad H., Tasdighi, Alireza   +4 more
core   +1 more source

IL‐33‐Induced TREM2+ Macrophages Promote Pathological New Bone Formation Through CREG1‐IGF2R Axis in Ankylosing Spondylitis

Advanced Science, Volume 12, Issue 18, May 15, 2025.
This study identifies TREM2+ macrophages as key contributors to pathological bone formation in ankylosing spondylitis (AS). These macrophages mediate pathological new bone formation via the CREG1‐IGF2R‐PI3K‐AKT pathway and are regulated by IL‐33 through STAT6 phosphorylation.
Wenjun Hao, Siwen Chen, Hua Chao, Zihao Li, Hao Yang, Dongying Chen, Sifang Li, Shuai Zhang, Jingyu Zhang, Jianru Wang, Zemin Li, Xiang Li, Zhongping Zhan, Tangming Guan, Yiwen Zhang, Wende Li, Hui Liu   +16 more
wiley   +1 more source

Assessing and countering reaction attacks against post-quantum public-key cryptosystems based on QC-LDPC codes

, 2018
Code-based public-key cryptosystems based on QC-LDPC and QC-MDPC codes are promising post-quantum candidates to replace quantum vulnerable classical alternatives.
A Becker, A May, DJ Bernstein, E Berlekamp, E Eaton, E Prange, J Stern, K Kobara, M Baldi, M Baldi, M Baldi, MK Shooshtari, Q Guo, RG Gallager, T Fabšič   +14 more
core   +1 more source

Efficient QC-LDPC Encoder for 5G New Radio [PDF]

Electronics, 2019
This paper presents a novel efficient encoding method and a high-throughput low-complexity encoder architecture for quasi-cyclic low-density parity-check (QC-LDPC) codes for the 5th-generation (5G) New Radio (NR) standard. By storing the quantized value of the permutation information for each submatrix instead of the whole parity check matrix, the ...
Tram Thi Bao Nguyen, Tuy Nguyen Tan, Hanho Lee   +2 more
openaire   +1 more source

Classical channel bandwidth requirements in continuous variable quantum key distribution systems

IET Quantum Communication, Volume 5, Issue 4, Page 601-611, December 2024.
The reconciliation method for continuous variable quantum key distribution (CV‐QKD) systems is usually chosen based on its reconciliation efficiency. Nonetheless, one must also consider the requirements of each reconciliation method in terms of the amount of information transmitted on the classical channel. Such may limit the achievable key rates.
Margarida Almeida, Daniel Pereira, Armando N. Pinto, Nuno A. Silva   +3 more
wiley   +1 more source

Array Convolutional Low-Density Parity-Check Codes

, 2013
This paper presents a design technique for obtaining regular time-invariant low-density parity-check convolutional (RTI-LDPCC) codes with low complexity and good performance. We start from previous approaches which unwrap a low-density parity-check (LDPC)
Baldi, Marco, Cancellieri, Giovanni, Chiaraluce, Franco   +2 more
core   +1 more source

Advanced channel coding schemes for B5G/6G networks: State‐of‐the‐art analysis, research challenges and future directions

International Journal of Communication Systems, Volume 37, Issue 13, 10 September 2024.
This paper undertakes a review and analysis of advanced channel coding techniques with the aim of their scalability towards B5G/6G networks scenario. A comparative study is presented for channel coding candidates of futuristic networks. Concatenated and derived codes of convolutional, polar, LDPC, Rateless, and Space‐time coding schemes are reviewed ...
Abhilasha Gautam, Prabhat Thakur, Ghanshyam Singh   +2 more
wiley   +1 more source

Distance Properties of Short LDPC Codes and their Impact on the BP, ML and Near-ML Decoding Performance

, 2017
Parameters of LDPC codes, such as minimum distance, stopping distance, stopping redundancy, girth of the Tanner graph, and their influence on the frame error rate performance of the BP, ML and near-ML decoding over a BEC and an AWGN channel are studied ...
A Orlitsky, AS Asratian, C Di, CE Shannon, ER Berlekamp, G Poltyrev, H Pishro-Nik, H Pishro-Nik, I Sason, IE Bocharova, J Feldman, J Zumbrägel, M Baldi, M Jianjun, M Schwartz, N Varnica, RG Gallager, S Litsyn, T Hehn, T Richardson   +19 more
core   +1 more source

Encoding of QC-LDPC Codes of Rank Deficient Parity Matrix

Journal of Engineering, 2016
the encoding of long low density parity check (LDPC) codes presents a challenge compared to its decoding. The Quasi Cyclic (QC) LDPC codes offer the advantage for reducing the complexity for both encoding and decoding due to its QC structure.
Mohammed Kasim Mohammed Al-Haddad
doaj   +2 more sources