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Iterative decoding of block codes using reduced search soft output Viterbi algorithm
Iterative decoding of block codes using reduced search soft output Viterbi algorithm
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机译：使用简化的搜索软输出维特比算法对分组码进行迭代解码
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摘要
PURPOSE: A turbo coding method using a soft output Viterbi algorithm with a reduced complexity is provided to reduce complexity by using metrics in carrying out a turbo code of a block code using the soft output Viterbi decoding, and accordingly easily implement the turbo code of the block code with a desired complexity by effectively calculating a soft output value. CONSTITUTION: A block code is configured at a transmitting end in a first step. A decoding is carried out by rows using the soft output Viterbi algorithm with a reduced complexity regarding to a frame received at a receiving end in the second step. A decoding is carried out by lines using the soft output Viterbi algorithm with a reduced complexity by adding a soft output information outputted from the decoding by rows in a third step. A turbo code is carried out in the second step by adding a soft output information outputted from the decoding by lines in the third step.
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