Description: 硕士学位论文:LDPC码在瑞利衰落信道中的性能分析
信道编码技术可以带来编码增益，节省宝贵的功率资源，己经成为现代数字
通信系统中必不可少的关键技术。LDPC码采用低复杂度的迭代译码算法，且具有
逼近香农限的性能.由于LDPC码具有诸多优点，它在信息可靠传输中的良好应
用前景己经引起学术界和rr业界的高度重视，成为当今信道编码领域最受瞩目的
研究热点之一。
本文主要探讨了LDPC码在瑞利衰落信道中的性能，基于LDPC码的分组空
时码系统，以及基于LDPC码的正交频分复用系统.-master's degree thesis : LDPC codes in Rayleigh fading channels Performance Analysis channel coding technology can bring coding gain, Power saving valuable resources have become modern digital communication systems essential to the critical technologies. LDPC low complexity of the iterative decoding algorithm, having approximation Shannon limit performance. Because LDPC has many advantages, It reliable transmission of information in the application of good prospects has been caused rr academia and industry are taking, become the channel coding areas of the most watched one of the hot spots. This paper mainly discusses the LDPC Rayleigh fading channels in the performance Based on LDPC a space-time coding system, and based on LDPC orthogonal frequency division multiplexing system. Platform: |
Size: 2362368 |
Author:daniel |
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Description: ldpc译码器 目前通信系统中很多标准都在采用ldpc码，所以他很重要-LDPC decoder, many of the current communication system standards in the use of LDPC code, so he is very important Platform: |
Size: 1024 |
Author:Mars |
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Description: 2发2收的mimo系统通信仿真，希望对从事MIMO系统仿真的工作演员有所帮助。-2 Fat 2 collected MIMO system communication simulation, and they hope to engage in the work of MIMO system simulation actors help. Platform: |
Size: 17408 |
Author:王玉兰 |
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Description: 给出了用matlab实现LDPC码协作通信的程序，其中LDPC码用PEG算法构造，并给出了相应的文章。-Given LDPC codes using matlab to achieve collaborative communication procedures which LDPC codes constructed with the PEG algorithm, and gives the corresponding article. Platform: |
Size: 517120 |
Author:袁磊 |
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Description: serval books about ldpc , which is latest code near shannon limit , has great importance in digital communication Platform: |
Size: 1466368 |
Author:梅国强 |
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Description: LDPC(低密度奇偶校验码)编码是提高通信质量和数据传输速率的关键技术。LDPC码应用于实际通信系统是本课题的研究重点。编码资料-LDPC (Low Density Parity Check) codes is to improve communication quality and data transfer rates of key technologies. LDPC codes used in practical communication systems is the subject of research. Encoded data Platform: |
Size: 1349632 |
Author:qiaohui |
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Description: 无线通信物理层信道建模，链路衰落，LDPC编码，OFDM，及智能天线等等关于物理层的码源-Wireless communication channel modeling the physical layer, link the decline, LDPC codes, OFDM, and smart antennas, and so the source code on the physical layer Platform: |
Size: 9545728 |
Author:yangchao |
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Description: 本程序可仿真IEEE802.16e LDPC编解码器，程序设计原理见本人如下专著。
[1] 肖扬著, Turbo与LDPC编解码及其应用,人民邮电出版社，2010.
[2] 肖扬著, MIMO多天线无线通信系统，人民邮电出版社，2009。
本程序只用于科研，不得用于其它场合。-The program can simulate LDPC codec with IEEE 802.16e LDPC of the size
2256*4512, and 1/2 code rate.
Copyright (C2010-2015) Yang XIAO, Beijing Jiaotong University, Nov.3, 2010, E-Mail: yxiao@bjtu.edu.cn.
Current Version Published: 2010-11-3
In my following books, I derived the algorithm of constructing the parity check matrices of IEEE 802.16e LDPC.
[1] Y. Xiao, Turbo and LDPC Codecs and their Applications, Press of Posts and Telecommunications, Beijing, 2010.
[2] Yang Xiao, MIMO Multiple Antenna Wireless Communication Systems, Press of Posts and Telecommunications, Beijing, 2009.
This program also provides the LDPC code with the size 4512*2256, and 1/2 code. Platform: |
Size: 72704 |
Author:肖扬 |
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Description: 此为C++环境下的LDPC编译码的完整的源代码。常用于通信系统的编译码仿真过程。有助于各种项目的完成。-This is the C++ environment LDPC coding and decoding of the complete source code. Commonly used in the encoding and decoding communication system simulation. Contribute to the completion of various projects. Platform: |
Size: 1489920 |
Author:黄珊琳 |
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Description: 此为LDPC低密度校验码的编译码的原理与应用的详细介绍。包括各种信道模型下的仿真结果，有助于更好的学习通信系统的编译码过程的实现。-This is the LDPC coding and decoding LDPC codes principles and applications in detail. Including channel model simulation results, contribute to a better communication system of learning to achieve encoding and decoding process. Platform: |
Size: 8414208 |
Author:黄珊琳 |
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Description: LDPC码在通信系统中的应用，其解码译码在高斯，锐利信道中的应用。-LDPC codes in the communication system applications, the decoder decoding the Gaussian, sharp channel applications. Platform: |
Size: 1024 |
Author:李永强 |
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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: LDPC coded OFDM system for power line communication in the presence of both AWGN and Impulsive noise-LDPC coded OFDM system for power line communication in the presence of both AWGN and Impulsive noise.. Platform: |
Size: 5120 |
Author:murugan |
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Description: ：介绍了AWGN 信道基于高阶调制的软解调算法，研究了LDPC 码的和-积译码算法原
理，并对高阶调制的和-积算法及其简化算法进行了研究与性能仿真. 仿真结果表明采用高阶
调制的λ -min 和-积简化算法译码在降低了译码复杂度的同时可实现高速率数据的可靠传输-the high order soft demodulation algorithms based on AWGN were
introduced. Then the basic encoding and decoding principles of LDPC codes were studied, and the
sum-product algorithms with its reduced complexity algorithms were presented based on high order
soft demodulation. Simulation result shows that the coded-modulation algorithms can work reliably
in high speed digital communication. Platform: |
Size: 97280 |
Author:谭方 |
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Description: LDPC的编码的通信协做方式，以及调制系统在衰落新倒下的性能分析-The communication protocol of the LDPC encoding to make way, as well as the modulation system in fading newly fallen performance analysis Platform: |
Size: 555008 |
Author:caoyongmei |
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Description: 低密度奇偶校验码一,简称码是当前通信领域的热门研究课题之一,是第四代移动通信系统强有力的竞争者。-
A low-density parity check codes, referred yard is currently one of the hottest research topics in the field of communications, is the fourth generation mobile communication system strong competitor. Platform: |
Size: 2995200 |
Author:李科 |
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Description: 在光通信系统中的低密度奇偶校验码的性能仿真中，利用该软件可以检测校验矩阵中是否含有4环和6环，并且可以检测出4环和6环出现次数最多的点。-Performance Simulation LDPC in an optical communication system, the use of the software can detect whether a check matrix containing 4 and 6 ring ring, and can detect the highest number of points 4 and 6 ring ring appears. Platform: |
Size: 1024 |
Author:wangwanwan |
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Description: 无线通信中的一种LDPC编码的仿真实现方法，实用，可直接完整仿真(Wireless communication in a LDPC coding simulation method, practical, can be directly complete simulation) Platform: |
Size: 11442176 |
Author:zjuter
|
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Description: 实现在MIMO通信系统中ldpc的编码和解码功能(Implementation of the coding and decoding functions of LDPC in MIMO communication system) Platform: |
Size: 18432 |
Author:trhrt |
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