Description: 引入PEG（Progressive-edge-growth）算法来构造适合线性时间编码的LDPC校验矩阵，译码时采用简化最小和Min-Sum译码算法实现简化译码．仿真结果表明，该方法能够构造适合LDPC码的线性时间编码的下三角校验矩阵日，并且用此方法构造的LDPC码性能非常接近原来PEG算法构造的LDPC码．同时通过采用最小和Min-Sum算法降低译码复杂度．-The introduction of PEG (Progressive-edge-growth) algorithm to construct suitable for linear time encoding of LDPC check matrix, decoding simplified when the smallest and the Min-Sum decoding algorithm decoding simplified. Simulation results show that this method can construct LDPC codes suitable for linear time encoding on lower triangular calibration matrix, and constructed using this method the performance of LDPC code is very close to the original PEG algorithm constructed LDPC codes. At the same time through the use of the smallest and the Min-Sum decoding algorithm to reduce complexity. Platform: |
Size: 168960 |
Author:卡卡 |
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Description: LDPC codes are one of the hottest topics in coding theory today. Originally invented in
the early 1960 s, they have experienced an amazing comeback in the last few years. Unlike
many other classes of codes LDPC codes are already equipped with very fast (probabilistic)
encoding and decoding algorithms. The question is that of the design of the codes such that these
algorithms can recover the original codeword in the face of large amounts of noise. New analytic
and combinatorial tools make it possible to solve the design problem. This makes LDPC codes
not only attractive from a theoretical point of view, but also perfect for practical applications. In
this note I will give a brief overview of the origins of LDPC codes and the methods used for their
analysis and design. Platform: |
Size: 195584 |
Author:mike zhou |
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Description: In this paper, we present two encoding methods for
block-circulant LDPC codes. The first is an iterative encoding
method based on the erasure decoding algorithm, and the
computations required are well organized due to the blockcirculant
structure of the parity check matrix. Platform: |
Size: 394240 |
Author:kumar |
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Description: 这是一个LDPC 的matlab 仿真程序. 信道为AWGN. 调制方式为BPSK. 程序包里包含多种编码, 译码方式.-This is a box of LDPC simulation programs. The channel is AWGN channel and the modulation is BPSK. There are different encoding and decoding methods. Platform: |
Size: 9216 |
Author:Jiangxueqin |
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Description: 这是一个LDPC 的matlab 仿真程序. 信道为AWGN. 调制方式为BPSK. 程序包里包含多种编码, 译码方式.-This is a box of LDPC simulation programs. The channel is AWGN channel and the modulation is BPSK. There are different encoding and decoding methods. Platform: |
Size: 9216 |
Author:Jiangxueqin |
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Description: 本书介绍了LDPC码的基本编码和译码原理以及各种译码算法；详细分析了LDPC码的特点、分析方法；对无线移动通信信道模型下LDPC码的性能进行了剖析-This book describes the LDPC code' s basic principle of encoding and decoding and a variety of decoding algorithms a detailed analysis of the characteristics of LDPC codes, analytical methods pairs of wireless mobile communication channel model the performance of LDPC codes, analyzed ... ... Platform: |
Size: 4207616 |
Author:王国清 |
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Description: WiMAX is called worldwide interoperability for microwave access. This is one of the methods of wireless communication standard named under IEEE 802.16 standard. In this technique, simulation of the WiMAX system is performed under different channel conditions. The same system is simulated in two different scenarios. In the first scenario, the system is made work under LDPC encoding and LDPC decoding method of channel coding. In the second scenario, the system is made to work under OSTBC encoder and OSTBC combiner (encoder) of MIMO. The performance of the system is s studied and compared under LDPC and MIMO encoder and decoder techniques. -WiMAX is called worldwide interoperability for microwave access. This is one of the methods of wireless communication standard named under IEEE 802.16 standard. In this technique, simulation of the WiMAX system is performed under different channel conditions. The same system is simulated in two different scenarios. In the first scenario, the system is made work under LDPC encoding and LDPC decoding method of channel coding. In the second scenario, the system is made to work under OSTBC encoder and OSTBC combiner (encoder) of MIMO. The performance of the system is s studied and compared under LDPC and MIMO encoder and decoder techniques. Platform: |
Size: 8192 |
Author:Dileep M D |
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Description: 在matlab环境下，构造LDPC码的校验矩阵的各种方法，包括Gallager构造法，Mackay构造法，PEG构造法，对以后的编译码算法有很大的帮助。-In the matlab environment, various methods LDPC code parity check matrix structure, including Gallager construction law, Mackay construction law, PEG construction method, after encoding and decoding algorithms are of great help. Platform: |
Size: 11264 |
Author:王岩 |
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