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Design of semi-algebraic low-density parity-check (SA-LDPC) codes for multilevel coded modulation
Proceedings of the 8th International Scientific and Practical Conference of Students, Post-graduates and Young Scientists. Modern Technique and Technologies. MTT'2002 (Cat. No.02EX550), 2004Semialgebraic low-density parity-check (SA-LDPC) codes are proposed for the multilevel coded modulation system. We optimize code parameters of LDPC codes according to the rate of each level by Gaussian approximation. Iterative multistage decoding (IMSD) scheme is adopted to get the significant improvement.
null Yu Yi +2 more
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Comparison of Low-Density Parity-Check Codes in ATSC 3.0 and 5G Standards
IEEE transactions on broadcasting, 2019Recently, low-density parity-check (LDPC) codes have been adopted in Advanced Television Systems Committee 3.0 and 3rd Generation Partnership Project 5G standards. In this paper, we present their structures in detail.
Seok-Ki Ahn +4 more
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Effects of 2-D interleaving and Low Density Parity Check (LDPC) Codes on Burst Errors
Optical Data Storage, 2007We highlight the importance of interleaver in holographic data storage (HDS) systems corrupted by burst errors. We use the Gilbert-Elliott channel model to generate pages with burst errors and investigate a toroidal interleaving scheme.
Lakshmi D. Ramamoorthy +1 more
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Modified Iterative Two-Stage Hybrid Decoding Algorithm for Low-Density Parity-Check (LDPC) Codes
VTC Spring 2009 - IEEE 69th Vehicular Technology Conference, 2009This paper considers a modified iterative version of the two-stage hybrid algorithm for decoding low-density parity- check (LDPC) codes. The hybrid-decision scheme is a decoding scheme used that combines two iterative decoding algorithms for decoding LDPC codes. This scheme is suitable for many applications such as audio and video transmission that are
Hany R. Zeidan, Maha M. Elsabrouty
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2019 5th International Conference on Transportation Information and Safety (ICTIS), 2019
The maritime navigation digital system proposed in this paper uses the Orthogonal Frequency Division Multiplexing (OFDM) modulation method instead of the original Frequency Shift Keying (FSK) modulation method to increase the capability of the maritime security department to broadcast information by 150 times.
Xiang Wang, Jingxian Liu, Zhao Liu
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The maritime navigation digital system proposed in this paper uses the Orthogonal Frequency Division Multiplexing (OFDM) modulation method instead of the original Frequency Shift Keying (FSK) modulation method to increase the capability of the maritime security department to broadcast information by 150 times.
Xiang Wang, Jingxian Liu, Zhao Liu
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An Adaptation of Min-Sum Decoder for 5G Low-Density Parity-Check Codes
International Symposium on Circuits and Systems, 2019This paper presents an adaptation of the Min-Sum decoders for the Low-Density Parity-Check (LDPC) used in the enhanced mobile broadband (eMBB) scenario in the 5th generation mobile networks (5G). Starting from the structure of the proposed LDPC codes for
Khoa LeTrung +2 more
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Efficient Encoding of Quasi-Cyclic Low-Density Parity-Check Codes
IEEE Advanced Information Technology, Electronic and Automation Control Conference, 2018A compact encoding process with three phases is proposed for quasi-cyclic low-density parity-check (QC-LDPC) codes. A back substitution circuit is shared at the first and third phases.
Tingting Liang +3 more
semanticscholar +1 more source
Robust Wavelet-Based Information Hiding through Low-Density Parity-Check (LDPC) Codes
2004In this paper, in order to mitigate the channel conditions and improve the quality of the watermark, we proposed the application of LDPC codes on implementing a fairly robust image watermarking system. The implemented watermarking system operates in the spectrum domain where a subset of the discrete wavelet transform (DWT) coefficients is modified by ...
Yu Yi +3 more
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Reconfigurable Low Density Parity Check (LDPC) Code Interleaving for SIO and MIMO OFDM Systems
2006 IEEE 7th Workshop on Signal Processing Advances in Wireless Communications, 2006This contribution1 derives an algorithm for optimizing the mapping of irregular and systematic Low Density Parity Check (LDPC) code word bits onto Orthogonal Frequency Division Multiplexing (OFDM) carriers in the context of a frequency selective fading channel in both, a Single-Transmit Single-Receive (SISO channel) and Multiple-Transmit Multiple ...
Markus Muck +2 more
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Bootstrapped Low Complexity Iterative Decoding Algorithm for Low Density Parity Check (LDPC) Codes
2010RRWBF (Reliability ratio based weighted bit-flipping) algorithm is one of the best hard decision decoding algorithms in performance. Recently several modifications are done to this technique either to improve performance or to lower the complexity.
Albashir Mohamed +2 more
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