Design of Low-Complexity Well-Structured LDPC Codes Based on Iterative-Filled Approach

2008 ◽  
Author(s):  
Wei Zhang ◽  
Guangxi Zhu ◽  
Li Peng ◽  
Qiongxia Shen
Keyword(s):  
Ldpc Codes ◽  
Low Complexity

scholarly journals High Area-Efficient Parallel Encoder with Compatible Architecture for 5G LDPC Codes

Symmetry ◽  
2021 ◽  
Vol 13 (4) ◽  
pp. 700
Author(s):  
Yufei Zhu ◽  
Zuocheng Xing ◽  
Zerun Li ◽  
Yang Zhang ◽  
Yifan Hu
Keyword(s):  
High Performance ◽  
Ldpc Codes ◽  
Low Complexity ◽  
Cmos Technology ◽  
Area Efficiency ◽  
Prior Art ◽  
New Radio ◽  
High Area ◽  
Significant Area ◽  
Area Efficient

This paper presents a novel parallel quasi-cyclic low-density parity-check (QC-LDPC) encoding algorithm with low complexity, which is compatible with the 5th generation (5G) new radio (NR). Basing on the algorithm, we propose a high area-efficient parallel encoder with compatible architecture. The proposed encoder has the advantages of parallel encoding and pipelined operations. Furthermore, it is designed as a configurable encoding structure, which is fully compatible with different base graphs of 5G LDPC. Thus, the encoder architecture has flexible adaptability for various 5G LDPC codes. The proposed encoder was synthesized in a 65 nm CMOS technology. According to the encoder architecture, we implemented nine encoders for distributed lifting sizes of two base graphs. The eperimental results show that the encoder has high performance and significant area-efficiency, which is better than related prior art. This work includes a whole set of encoding algorithm and the compatible encoders, which are fully compatible with different base graphs of 5G LDPC codes. Therefore, it has more flexible adaptability for various 5G application scenarios.

Low-complexity high-rate irregular QC-LDPC codes with applications to PR2 and EPR2 channels

2012 ◽  
Vol 25 (3) ◽  
pp. 370-382
Author(s):  
Virasit Imtawil ◽  
Mongkol Kupimai ◽  
Anan Kruesubthaworn ◽  
Apirat Siritaratiwat ◽  
Anupap Meesomboon
Keyword(s):  
Ldpc Codes ◽  
Low Complexity ◽  
High Rate

A Low-Complexity EMS Algorithm with Dynamic Message Truncation for Non-Binary LDPC Codes

2021 ◽  
Author(s):  
Fulong Wang ◽  
Ming Zhan ◽  
Qian Zhang ◽  
Hao Tang ◽  
Yunkai Feng ◽  
...  
Keyword(s):  
Ldpc Codes ◽  
Low Complexity

Low-Complexity and Piecewise Systematic Encoding of Non-Full-Rank QC-LDPC Codes

2015 ◽  
Vol 19 (6) ◽  
pp. 897-900 ◽  
Author(s):  
Chien-Fu Tseng ◽  
Jenn-Hwan Tarng
Keyword(s):  
Ldpc Codes ◽  
Full Rank ◽  
Low Complexity ◽  
Systematic Encoding

Nonbinary LDPC codes constructed based on a cyclic MDS code and a low-complexity nonbinary message-passing decoding algorithm

2010 ◽  
Vol 14 (3) ◽  
pp. 239-241 ◽  
Author(s):  
Chao Chen ◽  
Baoming Bai ◽  
Xinmei Wang ◽  
Ming Xu
Keyword(s):  
Message Passing ◽  
Ldpc Codes ◽  
Low Complexity ◽  
Mds Code ◽  
Decoding Algorithm ◽  
Nonbinary Ldpc Codes

Low-complexity decoding of LDPC codes

2007 ◽  
Vol 43 (18) ◽  
pp. 990 ◽  
Author(s):  
N. Pandya ◽  
B. Honary
Keyword(s):  
Ldpc Codes ◽  
Low Complexity
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