Description: ldpc decode c程序
Iterative probabilistic decoding of linear block codes.Based on Pearl s Belief Propagation in Bayesian Networks.This version utilizes object to define graph nodes and LOG-LIKELIHOOD RATIOS. Much improved in terms of speed compared to log_pearl.c.
It can use a look-up table to avoid exp() computations Platform: |
Size: 4578 |
Author:sblkiaw |
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Description: ldpc decode c程序
Iterative probabilistic decoding of linear block codes.Based on Pearl s Belief Propagation in Bayesian Networks.This version utilizes object to define graph nodes and LOG-LIKELIHOOD RATIOS. Much improved in terms of speed compared to log_pearl.c.
It can use a look-up table to avoid exp() computations-ldpc decode c procedure Iterative probabilistic decoding of linear block codes.Based on Pearl s Belief Propagation in Bayesian Networks.This version utilizes object to define graph nodes and LOG-LIKELIHOOD RATIOS. Much improved in terms of speed compared to log_pearl.c.It can use a look-up table to avoid exp () computations Platform: |
Size: 4096 |
Author:sblkiaw |
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Description: LDPC码在基于BP (Belief Propagation) 的迭代译码相结合的条件下具有逼近Shannon 限的性能，是继turbo 码后在纠错编码领域又一重大进展。压缩文件中给出了LDPC在高斯信道下的c程序。-LDPC codes based on BP (Belief Propagation) Iterative Decoding of combining conditions with performance approaching Shannon limit on the heels of turbo code error correction coding in another area of significant progress. Compressed file give the LDPC at Gaussian channel c under the procedure. Platform: |
Size: 7168 |
Author:aiguixia |
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Description: 基于对数的置信度传播算法的LDPC译码程序，ldpc_decode.m
-Based on the number of belief propagation algorithm for LDPC decoding process, ldpc_decode.m Platform: |
Size: 1024 |
Author:王望 |
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Description: The decoding of Low Density Parity Check (LDPC) codes through the iterative process of belief propagation presents practical challenges for designers looking for real time performance in communication systems. Due to the geometric and finite pattern nature endemic in the construction of LDPC codes, this paper proposes the use of Multi Layer Perception (MLP) feed forward artificial neural networks to replace belief propagation to achieve constant decoding times while retaining performance levels comparable to more traditional decoding methods. Due to the back propagation training method used for neural networks, and the requirement of showing the network every possible input output sequence it will ever see, this paper also presents a novel method of approaching long block length codes far larger than is otherwise possible to train neural networks for with modern computer hardware. Platform: |
Size: 431104 |
Author:namareq |
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Description: The code provides a noisy belief propagation density evolution algorithm for a (3, 6) LDPC code. Platform: |
Size: 1024 |
Author:homayoon |
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Description: 用 LDPC 解码法，对原始信号通道的噪声进行评估，消去。具体原理可参照IEEE TCOM的论文。-Channel Noise Estimation or correlation estimation for distributed source coding Using Particle based Belief Propagation for LDPC decoding in AWGN and BSC models.
This code is partially based on our published journal papers with some additional improvements. In this code, we removed the parameter \lambda to reduce the number of free parameters. PBP estimator is distributed in the hope that is will be useful, but without any warranty. The codes have not been optimized, so the estimation speed may be slow. To use PBP estimator source code in your research, please cite our journal papers published in IEEE TCOM.
Platform: |
Size: 397312 |
Author:林真天 |
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Description: 有关LDPC码的基础知识，对于初学者有很好的帮助。里面包括置信传播译码算法以及对比图-LDPC codes based on knowledge, there is a good help for beginners. Which includes belief propagation decoding algorithm and comparison chart Platform: |
Size: 1756160 |
Author:qiaoying |
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Description: Parity check bits is computed using sparse LU decomposition, utilizing sparse matrix properties of H. LDPC code decoding is done using iterative belief propagation or sum-product algorithm (SPA). Four versions of SPA decoder are presented. Platform: |
Size: 7168 |
Author:nat |
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Description: Low-Density Parity-Check (LDPC) codes have gained lots of popularity due to their
capacity achieving/approaching property. This work studies the iterative decoding
also known as message-passing algorithms applied to LDPC codes. Belief propagation
(BP) algorithm and its approximations, most notably min-sum (MS), are popular
iterative decoding algorithms used for LDPC and turbo codes. The thesis is divided
in two parts. In the rst part, a low-complexity binary message-passing algorithm
derived the dynamic of analog decoders is presented and thoroughly studied.
In the second part, a modi cation for improving the performance of BP and MS
algorithms is proposed. It uses adaptive normalization of variable node message-Low-Density Parity-Check (LDPC) codes have gained lots of popularity due to their
capacity achieving/approaching property. This work studies the iterative decoding
also known as message-passing algorithms applied to LDPC codes. Belief propagation
(BP) algorithm and its approximations, most notably min-sum (MS), are popular
iterative decoding algorithms used for LDPC and turbo codes. The thesis is divided
in two parts. In the rst part, a low-complexity binary message-passing algorithm
derived the dynamic of analog decoders is presented and thoroughly studied.
In the second part, a modi cation for improving the performance of BP and MS
algorithms is proposed. It uses adaptive normalization of variable node message Platform: |
Size: 400384 |
Author:rag |
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Description: ldpc译码程序，基于MATLAB，采用置信传播算法-LDPC decoding process, based on MATLAB, using the belief propagation algorithm Platform: |
Size: 1024 |
Author:王鸿驰 |
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Description: C and MATLAB implementation for LDPC encoding and decoding-Overview of what is provided
WiFi (IEEE 802.11n) LDPC code construction
Encoding by back-substitution for WiFi LDPC codes
Iterative belief propagation (BP) Decoding (including min-sum)
AWGN simulations for BPSK, 4-ASK, 8-ASK (equivalently QPSK, 16-QAM, and 64-QAM) Platform: |
Size: 321536 |
Author:上善若水 |
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Description: 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) Platform: |
Size: 7168 |
Author:李孟
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Search - lDPC Belief Propagation