Design and Implementation of Multi-rate QC-LDPC Decoder [PDF]
, 2011 低密度奇偶校验码(ldPC)是目前最有效的差错控制手段之一,而其中准循环ldPC码(QC-ldPC)应用最为广泛。提出了一种通用的多码率QC-ldPC译码器设计方法,并在fPgA上完成了实现和测试。测试结果表明,该多码率译码器在资源占用不超过2种码率译码器资源之和的前提下能够有效支持至少3种码率;且工作时钟在110 MHz时,固定迭代次数为16次,该译码器的吞吐率能保持在110 Mb/S以上。Low-density parity-check(LDPC) code is one of the most ...
陈赟, 赵明, 陈翔, 王京
core
Adaptive RC QC-LDPC channel coding for frequency hopping shallow water acoustic communication [PDF]
, 2014 Conference Name:OCEANS 2014 - Taipei. Conference Address: Taipei, Taiwan. Time:April 7, 2014 - April 10, 2014.Shallow water acoustic (SWA) channels are fast varying spatially and temporarily according to environmental conditions.
Xu, Xiaomei +6 more
core
Optimized Puncturing of the Check Matrix for Rate-Compatible LDPC Codes
MATEC Web of Conferences, 2018 In the wireless communication system, it is necessary to change the transmitted code word or code rate in real time according to the channel environment, designing and implementing rate compatible codes is of great practical significance.
Zhang Liang, Meng Jiahui, Zhao Danfeng
doaj +1 more source
Construction Method of QC-LDPC Codes with Big Girth for Fast Encoding [PDF]
Jisuanji gongcheng, 2018 The sub-matrices on both diagonals of the right half of the check matrix are unit matrices.Existence of the deterministic unit matrix not only destroys the randomness of Quasie Cyclic-Low Density Parity Check(QC-LDPC) code,it leads to a certain loss of ...
PENG Haiying,YANG Jian,SUN Lijun
doaj
Performance analysis of QC-LDPC codes over shallow water acoustic channels [PDF]
, 2011 Considering that a shallow water acoustic (SWA) channel is characterized by rapid time-dispersive fading, multipath and narrow bandwidth, which has to use the error correcting code technique with short code length, good performance and easy ...
Feng, W +6 more
core
Short Blocklength Nonbinary Raptor-Like LDPC Coding Systems Design and Simulation
IEEE AccessThis paper explores an efficient rate-adaptive error correction coding scheme with a nonbinary (NB) $\mathrm {GF}(2^{q})$ extension of Raptor-like (RL) quasi-cyclic (QC) subclass of Low-Density Parity-Check (LDPC) codes.
Jakub Hyla, Wojciech Sulek
doaj +1 more source
Design and Implementation of a Highly Efficient Quasi-Cyclic Low-Density Parity-Check Transceiving System Using an Overlapping Decoder. [PDF]
Sensors (Basel), 2023 Sun Y +5 more
europepmc +1 more source
A flexible NoC-based LDPC code decoder implementation and bandwidth reduction methods [PDF]
, 2011 Condo C., Masera G. +4 more
core +1 more source
Guangtongxin yanjiu, 2014 基于等差矩阵的性质特征,提出了一种QC-LDPC（准循环低密度奇偶校验）码的新颖构造方法。该构造方法易于有效编译码,具有良好的围长特性,可有效避免四环,使生成的码字不受短环的干扰,且在硬件实现方面可节省存储空间。仿真结果表明:当误码率达到10-7时,该构造方法造出的高码率QC-LDPC（3780,3542）码与ITU-T G.975中的RS（255,239）码相比,其净编码增益提高了约2.1dB,具有更好的纠错性能;与QC-LDPC（4221,3956）码相比,净编码增益提高了0.35dB。
黄胜, 田方方, 袁建国, 田凯
doaj
Quantum LDPC Codes Based on Cocyclic Block Matrices. [PDF]
Entropy (Basel), 2023 Li Y, Guo Y.
europepmc +1 more source