Description: There is an example of how to use the LDPC encode/decode with AWGN
channel model in files .\ldpc_decode.m and .\GFq\ldpc_decode.m.
There are a few parity check matrices available in the code but
you can use other matrices provided you have enough memory to load
them. I suggest checking out matrices in Alist format available on
David MacKay s web site.You will need to have access to a MEX compiler
to be able to use a few functions written in C.
LDPC的仿真代码-There is an example of how to use the LDPC enc ode/decode with AWGN channel model in files. \ l dpc_decode.m and. \ GFq \ ldpc_decode.m. There are a few parity check matrices available in the code but you can use other matrices provided you have enough memory to load them. I suggest check ing out matrices in Alist format available on Da vid MacKay's web site.You will need to have acces MEX's to a compiler to be able to use a few function 's written in C. Simulation LDPC code Platform: |
Size: 593920 |
Author:王文 |
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Description: 利用函数MadHG生成规则LDPC码的校验矩阵H，其行重为6,列重为3,行数为列数一半(行数越大越好)，H中任意两列没有围长为4的圈，并得到H对应的生成矩阵G，可以保证mod(G*H ,2)=0。使用方法为:[H,G] = MadHG(m,n,x),x= 1(得到的G左半部分为单位阵) or 2(G右半部分为单位阵),-use function MadHG Generation rules LDPC check matrix H, re-6, series of three, out for a few half of the number (A bigger the better), H 2 arbitrary no girth of the four circles, H counterparts and with the formation of matrix G, we can be assured of mod (G* H, 2) = 0. To be used : [H, G] = MadHG (m, n, x), x = 1 (the G part of the Left Front units) or 2 (G right half of the units RUF), Platform: |
Size: 4096 |
Author:心海 |
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Description: 利用函数MadHG生成规则LDPC码的校验矩阵H，其行重为6,列重为3,行数为列数一半(行数越大越好)，H中任意两列没有围长为4的圈，并得到H对应的生成矩阵G，可以保证mod(G*H ,2)=0。使用方法为:[H,G] = MadHG(m,n,x),x= 1(得到的G左半部分为单位阵) or 2(G右半部分为单位阵),-use function MadHG Generation rules LDPC check matrix H, re-6, series of three, out for a few half of the number (A bigger the better), H 2 arbitrary no girth of the four circles, H counterparts and with the formation of matrix G, we can be assured of mod (G* H, 2) = 0. To be used : [H, G] = MadHG (m, n, x), x = 1 (the G part of the Left Front units) or 2 (G right half of the units RUF), Platform: |
Size: 1024 |
Author:心海 |
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Description: ldpc码编码程序,具有删掉小环功能，编译速度较慢-LDPC code encoding process, with the deletion of a small loop function, the compiler slower Platform: |
Size: 1024 |
Author:xiaoxuena |
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Description: 生成ldpc码稀疏矩阵的matlab仿真程序，带有消除小环功能-Generate sparse matrix LDPC code of matlab simulation program, with the elimination of the small ring function Platform: |
Size: 2048 |
Author:xiaoxuena |
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Description: LDPC码校验矩阵声称函数，可以根据度分布生成相应的校验矩阵，适用于码长很长的LDPC.-LDPC check matrix function claims that can be generated in accordance with the corresponding distribution check matrix, for a very long code length LDPC. Platform: |
Size: 2048 |
Author:xingang |
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Description: ldpc码的peg构造，用c++写的，在xp上能够运行成功，是学习peg构造方法和c++编程的非常好的材料。-LDPC code peg construction, with c++ written in xp can be run successfully, is to learn from peg Construction methods and c++ programming very good material. Platform: |
Size: 417792 |
Author:木木 |
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Description: LDPC 码matlab程序 ，可用matlab直接运行，输出为BER曲线-LDPC code matlab program, matlab can be used directly to run, the output for the BER curves Platform: |
Size: 16384 |
Author:yiiiao |
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Description: 这是国标数字电视地面传输标准里信道编解码器的MATLAB程序，用的是LLR-BP的解码算法，请大家指正。另有根据国标生成的生成矩阵和校验矩阵稍后传上来-This is the national standard of digital TV terrestrial transmission standard in channel codec MATLAB program, using the LLR-BP decoding algorithm, please correct me. Otherwise in accordance with GB-generated matrix and calibration matrix generation later Chuan-up Platform: |
Size: 1024 |
Author:权大广 |
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Description: 低密度奇偶检验码与分层空时码的级联仿真，具有很高的价值，希望对大家有用。-Low-density parity check codes and layered space-time codes of the cascade simulation, with a very high value and hope for all of us. Platform: |
Size: 9216 |
Author:张力 |
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Description: 用matlab仿真了LDPC码的编码译码程序，及其用BPSK调制传输。并测其误码率-Matlab simulation of the LDPC codes with coding and decoding process, and its transmission with BPSK modulation. And measure its error rate Platform: |
Size: 8192 |
Author:张利 |
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Description: LDPC-PEG算法构造H矩阵源码程序，matlab源码程序 clear all;
clc;
%输入编码参数,m:校验节点数目，n:变量节点数目(注意码率R不一定为1/2)
%构造任意码率的LDPC校验矩阵
m=input('The number of check nodes:');
n=input('The number of variable nodes:');
h=zeros(m,n);
%给定变量节点度分布序列 dv=0.38354*x+0.04237*x^2+0.57409*x^3
%为了得到更好的性能，此处的度分布序列采用密度进化理论选取
dv=inline('0.38354*x+0.04237*x.^2+0.57409*x.^3','x');
%计算每个度分布的节点数
indv=quadl(dv,0,1);
a2=round(n*(0.38354/2/indv));
a3=round(n*(0.04273/3/indv));
ds(1:a2)=2;
ds(a2+1:a3+a2)=3;(LDPC-PEG algorithm constructs H matrix source code program, matlab source code program clear all;
CLC;
% Input coding parameters, m: number of check nodes, n: number of variable nodes (note that bit rate R is not necessarily 1/2)
% Constructing LDPC Check Matrix with Arbitrary Bit Rate
M = input ('The number of check nodes:');
N = input ('The number of variable nodes:');
H = zeros (m, n);
% Given variable nodal degree distribution sequence DV = 0.38354*x+0.04237*x^2+0.57409*x^3
% In order to get better performance, the density evolution theory is used to select the degree distribution sequence.
DV = inline ('0.38354 * x + 0.04237 * X. ^ 2 + 0.57409 * X. ^ 3','x');
% Calculate the number of nodes per degree distribution
INDV = quadl (dv, 0, 1);
A2 = round (n* (0.38354/2/indv));
A3 = round (n* (0.04273/3/indv);
DS (1:a2) =2;
DS (a2 + 1: A3 + a2) = 3;) Platform: |
Size: 1024 |
Author:MATLAB编程 |
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Search - ldpc with matlab