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2下载:
Turbo码仿真程序的C语言版,在AWGN信道下仿真turbo码的性能。-Turbo Codes simulation program in C language version of the AWGN simulation under turbo code performance.
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Software for Low Density Parity Check Codes Radford M. Neal Version of 2006-02-08. This collection of programs and modules, written in C, is intended to support research and education concerning Low Density Parity Check (LDPC) codes. (Note, however,
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文章详细介绍了TPC编码技术及信道容限, 是一篇不错的介绍TPC的文章-An important goal for a new communication system is to transfer information at a high rate while
keeping energy consumption low. Shannon s channel capacity sets a limit on the tradeoff between the rate
of infor
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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 heel
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精典的国外空时编码电子书籍。作者Branka Vucetic,Jinhong Yuan
-1 Performance Limits of Multiple-Input Multiple-Output Wireless Communication Systems
2 Space-Time Coding Performance Analysis and Code Design
3 Space-Time Block Codes
4 Space-Time Trellis Codes
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课程设计两个程序:一:数据帧(程序每帧设置为400bit)在有扰信道传输时,采用Turbo码进行编译码。并仿真Log-MAP译码算法在不同迭代次数下的性能。
二:实现有扰信道中,不同信噪比下,采用MAP译码算法的Turbo码的性能。
以上各主程序均有做比较详细的程序注释
可直接运行turbo_main.m或LogMAP.m,稍等片刻即可观察到仿真结果
-two programs of Curriculum design : a: Data frames
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Turbo码,LDPC码(低密度奇偶校验码)均具有接近Shannon限的性能,
是目前便译码研究的热点。Turbo码在低信噪比情况下的性能优于其它各种编码
方式。而LDPC码的描述简单,具有较大的灵活性,当码长足够长时具有比Turbo
码更为良好的性能,其译码复杂度低于Turbo码。-Turbo code, LDPC code (LDPC) all have close to Shannon limit performance, it is the firm' s resear
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Abstract—In this letter, we propose an efficient decoding algorithm
for turbo product codes as introduced by Pyndiah. The proposed
decoder has no performance degradation and reduces the
complexity of the original decoder by an order of magni
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The book can be used as a basis for one course, or a two course sequence, in digital communication. The following topics are covered: complex baseband representation of signals and noise (and its relation to modern transceiver
implementation) modul
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The ten-year-old turbo codes are entering into service-ABSTRACT
In the matter of channel coding and spectral
efficiency, up to the invention of turbo codes, 3
dB or more stood between what the theory
promised and what real systems were able t
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PERFORMANCE AND COMPLEXITY COMPARISON OF LOW DENSITY
PARITY CHECK CODES AND TURBO CODES
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turbo码的仿真源程序,帮助学者在Matlab平台研究turbo码的性能。-turbo code simulation source code to help scholars in the performance of turbo codes, Matlab platform.
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Turbo 码的matlab程序。它巧妙地将两个简单分量码通过伪随机交织器并行级联来构造具有伪随机特性的长码,并通过在两个软入/软出(SISO)译码器之间进行多次迭代实现了伪随机译码。他的性能远远超过了其他的编码方式,得到了广泛的关注和发展,并对当今的编码理论和研究方法产生了深远的影响,信道编码学也随之进入了一个新的阶段 -Turbo code matlab program. It skilfully two simple component codes through pseudo-rando
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通过MATLAB平台对通信仿真,研究讨论Turbo码的编译码结构,四种Turbo码译码算法,讨论Turbo码中几种常见的交织器,利用MATLAB软件平台进行并行级联Turbo卷积码的性能仿真,仿真评估了不同设计参数对Turbo码性能的影响。-Through MATLAB simulation platform for communications, research and discussion Turbo code decoding structure, four kinds of Turbo
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In this paper we propose a watermarking system that
uses the biorthogonal discrete wavelet transform, DWT and the
message is encoded before embedding. The proposed
watermarking method is very simple, implying four steps: turbo
coding of
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本程序是基于编码率1/3条件Turbo编码代码,通过设置不同的解码的迭代次数,比较它们之间BER的性能。大部分是功能函数,其中有主函数调用。具体可分析一下。-This program is based on Turbo encoding code rate 1/3 coding conditions, by setting different decoding iterations, BER performance comparison between them. Most of the per
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5G通信必须用到的编码:Turbo码是Claude.Berrou等人在1993年首次提出的一种级联码。基本原理是编码器通过交织器把两个分量编码器进行并行级联,两个分量编码器分别输出相应的校验位比特;译码器在两个分量译码器之间进行迭代译码,分量译码器之间传递去掉正反馈的外信息,这样整个译码过程类似涡轮(Turbo)工作。因此,这个编码方法又被形象地称为Turbo码。Turbo码具有卓越的纠错性能,性能接近香农限,而且编译码的复杂度不高。-5G communication must be used
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Turbo product Codes (TPC) MATLAB CODE:his code is provided to help researchers explore the performance of TPCs under different scenarios
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In this paper, we employ iteratively decodable codes in a turbolike receiver of a multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) communication system. With such a receiver, we compare the decoding complexity a
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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
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