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【文件名】:0691@52RD_ics.part1.rar
【格 式】:rar
【大 小】:900K
【简 介】:Codes play an important role in many areas of science. To name just a few: In mathematics they give rise to dense lattices and allow the construction of designs for use in statistics. In the area of computer science, some public-key crypto systems are based on codes, they are the crucial ingredient for some extractors –generating a large number of weakly random bits from a small number of truly random bits – and they make efficient hashing functions. Codes are helpful in minimizing the communication complexity and they can be used to turn worstcase hardness into average-case hardness. In the area of communications, codes help to represent sources efficiently, to combat the adverse effects of the noise introduced by the communications channel, to avoid large peak-to-average power ratios or to minimize the interference in multi-user systems.
【目 录】:
1 Introduction
2 The Binary Erasure Channel
3 Binary, Memoryless, Symmetric Channels
4 Factor Graphs
5 Turbo Codes
6 Ensembles, Optimization, Quantization
7 Encoding Low-Density Parity-Check Codes
8 Graph Design
9 Expander Codes and the Flipping Algorithm
10 Statistical Mechanics of LDPC Codes
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发表于 2006-9-1 15:36:00
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