Search - LDPC BIT

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[Communication-Mobile] ldpc_decoder DL : 0: 采用Log-BP算法的LDPC码译码仿真程序，给出了不同信噪比下误码率和误包率的统计图，用matlab和C（c-mex）程序分别编写，有详细说明和注释。-The use of Log-BP decoding algorithm for LDPC code simulation program is given a different signal to noise ratio and bit error rate under the packet error rate of the statistical map, using matlab and C (c-mex) procedures, respectively, to prepare, has a detailed description and notes .
Date : 2025-07-06 Size : 76kb User : 智钢
[Other] 098 DL : 0: [LDPC码]是LDPC码相关论文 [WuYuFei]中是WuYuFei的论文 [WuYufei_matlab]是WuYufei做Turbo码的Matlab程序程序实现在固定信噪比和卷积长度的条件下，计算不同正常的帧错误概率和比特错误概率 turbo_sys_demo.m是主程序其中trellis.m是构造网格的子程序 logmapo.m是LOGMAP译码算法子程序 sova0.m是SOVA译码算法子程序 encoderm.m是编码子程序 [22]是以WuYufei程序的改动，实现在帧长、信噪比和迭代次数固定的情况下，获得两个译码器的先验信息的变化情况 http://www.pudn.com -[LDPC Code] LDPC code is a relevant paper [WuYuFei] is WuYuFei paper [WuYufei_matlab] is to do WuYufei procedures Turbo Codes Matlab program signal to noise ratio at a fixed length and convolution conditions, different normal frame error probability and the bit error probability is turbo_sys_demo.m main structure of which is trellis.m grid is logmapo.m Subroutine Subroutine LOGMAP decoding algorithm is the SOVA decoding algorithm sova0.m Subroutine Subroutine encoderm.m coding [22 ] WuYufei procedure is based on changes in帧长realize, signal to noise ratio and a fixed number of iterations circumstances, the acquisition of two decoder a priori information changes http://www.pudn.com
Date : 2025-07-06 Size : 1.69mb User : 李灵
[Communication] APPdecode DL : 0: 低密度校验码的应用程序，包括编码、调制、信道加躁、译码和错比特统计，适用面广泛。-LDPC applications, including coding, modulation, channel plus impatient and decoding and bit wrong statistics, applicable to a wide range.
Date : 2025-07-06 Size : 1kb User : 牛顿
[matlab] LDPCBSN DL : 0: 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. MacKay-Neal based LDPC matrix. Message encoding uses sparse LU decomposition. There are 4 choices of decoder: hard-decision/bit-flip decoder, probability-domain SPA decoder, log-domain SPA decoder, and simplified log-domain SPA decoder.
Date : 2025-07-06 Size : 8kb User : 天天
[Post-TeleCom sofeware systems] jiao2 DL : 0: 此代码为用比特填充法编写的ldpc码的校验矩阵。它的girth为6，最大行重为8，列重为3-This code with bit-filling method for the preparation of the calibration matrix ldpc code. Its girth is 6, maximum line weight of 8, out of 3 re-
Date : 2025-07-06 Size : 1kb User : 谢宁
[Program doc] boundsonLDPCandLDGM DL : 0: 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. The method is based on a rigorous approach to spin glasses developed by Francesco Guerra. It allows to construct lower bounds on the entropy of the transmitted message conditional to the received one. Based on heuristic statistical mechanics calculations, we conjecture such bounds to be tight. The result holds for standard irregular ensembles when used over binary input output symmetric channels. The method is first developed for Tanner graph ensembles with Poisson left degree distribution. It is then generalized to ‘multi-Poisson’ graphs, and, by a completion procedure, to arbitrary degree distribution.
Date : 2025-07-06 Size : 447kb User : mike zhou
[Communication-Mobile] kmplot DL : 0: LDPC codes BER simulation under AWGN channel. MacKay-Neal based LDPC matrix. Message encoding uses sparse LU decomposition. There are 4 choices of decoder: hard-decision/bit-flip decoder, probability-domain SPA decoder, log-domain SPA decoder, and simplified log-domain SPA decoder.
Date : 2025-07-06 Size : 4kb User : Rafal
[Crack Hack] decodeBitFlip DL : 0: ldpc bit flipping decoding in matlab
Date : 2025-07-06 Size : 1kb User : ig77
[Other] ldpc2 DL : 0: ldpc编码，在加性高斯白噪声情况下描述出它的误码率随信噪比变化的情况-ldpc coding, in the additive white Gaussian noise cases, describe its bit error rate with signal to noise ratio the changes in the
Date : 2025-07-06 Size : 13kb User : 庄敏敏
[Internet-Network] Improved-parallel-weighted-bit-flipping DL : 0: LDPC码的并行加权比特翻转算法，能够达到不错的译码性能，是一篇很好的文章-LDPC codes in parallel weighted bit flipping algorithm can achieve good decoding performance is a very good article
Date : 2025-07-06 Size : 187kb User : 于
[Communication-Mobile] LDPC_BSN DL : 0: LDPC codes BER simulation under AWGN channel. MacKay-Neal based LDPC matrix. Message encoding uses sparse LU decomposition. There are 4 choices of decoder: hard-decision/bit-flip decoder, probability-domain SPA decoder, log-domain SPA decoder, and simplified log-domain SPA decoder. Documentation and update can be found at: http://sites.google.com/site/bsnugroho/ldpc
Date : 2025-07-06 Size : 9kb User : Józef
[Post-TeleCom sofeware systems] LDPC DL : 0: LDPC码的编译码算法的实现与仿真，以及平均误码率的分析。-LDPC code decoding algorithm implementation and simulation, and the average bit error rate analysis.
Date : 2025-07-06 Size : 15kb User : nili
[matlab] LDPC_gallager DL : 0: 利用gallager的方案进行生成H矩阵，在高斯信道下得到误码率得性能仿真-The program generated using gallager H matrix, in the Gaussian channel bit error rate was obtained Simulation
Date : 2025-07-06 Size : 102kb User : 熊路
[VHDL-FPGA-Verilog] LDPC DL : 0: VLSI LDPC Soft bit flipping decoder
Date : 2025-07-06 Size : 249kb User : vijay
[Algorithm] LDPC-communication-system DL : 0: A complete commuination system with PSK modulation and demodulation and LDPC bit flipping channel coding and decoding
Date : 2025-07-06 Size : 2kb User : mamni
[Software Engineering] LDPC DL : 0: Low density parity check bit programming
Date : 2017-03-15 Size : 1.31kb User : latteo_p@hotmail.com
[Other] LDPC DL : 0: ldpc编译码译码算法包括置信传播和比特翻转还有对数域的置信传播译码算法(LDPC Encoding and decoding algorithms include belief propagation and bit flipping, as well as the log domain belief propagation decoding algorithm)
Date : 2025-07-06 Size : 7kb User : 李孟
[Communication-Mobile] LDPC随机生成LLR DL : 0: LDPC编码方式随机生成LLR，误码率，bitflip译码(LDPC coding generates random LLR, bit error rate, bitflip decoding)
Date : 2025-07-06 Size : 29kb User : 谁曾见过风
[Mathimatics-Numerical algorithms] LDPC-PEG算法构造H矩阵 DL : 1: 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;)
Date : 2025-07-06 Size : 1kb User : MATLAB编程
[3G develop] LDPC DL : 0: 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 probability of your decoding algorithm when the SNR is 1, 1.5, 2, 2.5, 3 dB with BPSK modulation and AWGN channels.)
Date : 2025-07-06 Size : 29kb User : 项庄舞剑

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