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Spread Spectrum Communication Systems Spread spectrum signals for digital communications were originally developed andused for military communications 阅读全文
CCS - Channel Capacity and Coding - Channel Coding - Decoding LDPC Codes - The Sum-Product Algorithm
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The Sum-Product Algorithm The sum-product algorithm, which belongs to the class of message-passing algorithms,is an iterative decoding algorithm for L 阅读全文
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Decoding LDPC Codes - The Bit-Flipping Algorithm The bit-flipping algorithm is a hard-decision decoding algorithm with low complexity. A modified, and 阅读全文
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Low-Density Parity-Check Codes Low-density parity-check codes (LDPC) are linear block codes that are characterizedby a sparse parity-check matrix. The 阅读全文
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Iterative Decoding for Turbo Codes We have seen that optimal decoding of turbo codes is impossible due to the large numberof states in the code trelli 阅读全文
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Turbo Codes Shannon's random coding theorem states that codes achieving channel capacity musthave random, or close to random, distribution as well as 阅读全文
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Error Probability Bounds for Convolutional Codes Finding bounds on the error performance of convolutional codes is different from themethod used to fi 阅读全文
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Decoding of Convolutional Codes Viterbi Algorithm There exist many algorithms for decoding of convolutional codes. The Viterbi algorithmis probably th 阅读全文