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LDPCBSN
- LDPC码既低密度奇偶校验码（Low Density Parity Check Code，LDPC），它由Robert G.Gallager博士于1963年提出的一类具有稀疏校验矩阵的线性分组码，不仅有逼近Shannon限的良好性能，而且译码复杂度较低, 结构灵活，是近年信道编码领域的研究热点，目前已广泛应用于深空通信、光纤通信、卫星数字视频和音频广播等领域。LDPC码已成为第四代通信系统(4G) -LDPC codes BER simulation under AWGN channel.
QC_codes
- Construct the short length of QC LDPC codes without girth 4 and girth 6-The Program to construct the short length of QC LDPC codes without girth 4 and girth 6 Copyright (C) Yang XIAO, Jun FAN, BJTU, July 26, 2007, E-Mail: yxiao@bjtu.edu.cn.
boundsonLDPCandLDGM
- The paper is about bounds for LDPC and LDGM codes under MAP. A new method for analyzing low density parity check (LDPC) codes and low density generator matrix (LDGM) codes under bit maximum a posteriori probability (MAP) decoding is introduced. T
LDPCtutorial
- Low-density parity-check (LDPC) codes are a class of linear block LDPC codes. The name comes from the characteristic of their parity-check matrix which contains only a few 1’s in comparison to the amount of 0’s. Their main advantage is that the
LDPC_C_wz
- LDPC码具有很好的性能，译码也十分方便。特别是在GF（q）域上的非规则码，在非规则双向图中，当各变量节点与校验节点的度数选择合适时，其性能非常接近香农限-Low-density Parity-check
LDPC-2006-02-08.tar
- Software for LDPC codes. LDPC stands for Low Density Parity Check Codes. These codes are copy of the copy of the codes available on the site of reid fordneil
cycle_search
- 本程序是用来查找LDPC parity-check matrix中的cycle的. 以次可以方便知道girth 的情况.-This program is used to find all the cycles in the parity-check matrix of the LDPC codes. By using this program we can also know the girth condition of our codes.
Regular PEG
- 此程序 是一个C++程序. 通过PEG算法来构造 LDPC parity-check 矩正的Tanner 图.-This is a C++ program, which is used to construct Tanner graph of LDPC codes with the famous PEG algorithm.
shift_choosing
- 这个程序 是用来为QC-LDPC 的parity check matrix 选择 shift values的. 其中 0 matrix 的shift value为-1.-this program is used to assign the shift values for parity-check matrix of the QC-LDPC codes. The shift value of the zero matrix is-1.
LLR_decoding
- 对数似然比测度下低密度奇偶检验码的译码算法，有很大的价值啊 -Log-likelihood ratio measure under the low-density parity check codes decoding algorithm, there is great value to ah
makeLdpc
- LDPC编码算法, Create R = 1/2 low density parity check matrix M : Number of row N : Number of column method : Method for distributing non-zero element {0} Evencol : For each column, place 1s uniformly at random {1} Evenboth: For each
LowDensityParityCheckCode
- 有关可变码长LDPC编码电路的设计与实现的MATLAB编码程序的上传-LDPC Low Density Parity Check Code，LDPC
Channel_Codes
- This book includes BCH codes, Reed–Solomon codes, convolutional codes, finite-geometry codes, turbo codes, low-density parity-check (LDPC) codes, and product codes. However, the title has a second interpretation. While the majority of this book
Realization_of_FPGA_for_LDPC_encoding
- 低密度奇偶校验码(简称LDPC码)是目前距离香农限最近的一种线性纠错码，它的直接编码运算量较大，通常具有码长的二次方复杂度．为此，利用有效的校验矩阵，来降低编码的复杂度，同时研究利用大规模集成电路实现LDPC码的编码．在ISE 8．2软件平台上采用基于FPGA的Verilog HDL语言实现了有效的编码过程，为LDPC码的硬件实现和实际应用提供了依据-Abstract：Low．density parity·check code(LDPC code)is a kind of linear eror
LDPC-2012-02-11
- C语言实现的LDPC（Low Density Parity Check Codes）通信仿真代码(Software for Low Density Parity Check Codes Version of 2012-02-11. This collection of programs and modules, written in C, is intended to support research and education concerning Low Density Pari
LDPC 码原理与应用
- LDPC学者的入门书籍，详细介绍了校验矩阵的构造方法，译码方法以及性能分析方法及其数学原理。(LDPC scholar's introductory books, detailing the construction of parity check matrix method, decoding methods and performance analysis methods and their mathematical principles.)
LDPC
- LDPC信道编码仿真。generate_h.m生成校验矩阵H。用main_encode.m程序载入校验矩阵信息，用encode.m进行编码。(LDPC channel coding simulation. Generate_h.m generates parity check matrix H. Load the check matrix information with main_encode.m program and encode with encode.m.)
LDPC-codes-master c源代码
- Low Density Parity Check Codes decoding algorithm
ldpc
- LDPC低密度奇偶校验码的程序 可供参考 还不错(LDPC Low density parity check code program for reference good)
LDPC
- 1） 生成具有大小的LDPC奇偶校验矩阵。 2） 使用BF算法对使用1）生成的码字进行解码。 3） 给出解码算法在BPSK调制和AWGN信道下，信噪比为1、1.5、2、2.5、3db时的误码概率。(1)Generate a parity check matrix of LDPC with size . 2)Use the BF algorithm to decode a codeword generated by using 1). 3)Give the bit error probabilit