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Iterative decoding of signals received over a noisy channel using forward and backward recursions with warm-up initialization
Iterative decoding of signals received over a noisy channel using forward and backward recursions with warm-up initialization
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机译:使用前向和后向递归以及预热初始化对在有噪声信道上接收到的信号进行迭代解码
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摘要
One aspect provides a method. The method comprises receiving a signal comprising a sequence of encoded symbols, each corresponding to one of a plurality of possible states. For each symbol in the sequence, the method further comprises determining a set of state metrics, each representing a probability that the respective symbol corresponds to the plurality of states. The method further comprises decoding the signal by processing runs of recursions using runs of forward recursions, whereby a later state metric in the sequence is updated based on a preceding state metric, and runs of recursions using runs of reverse recursions, whereby a preceding state metric in the sequence is updated based on a later state metric. The method further comprises outputting the decoded signal to a device. The decoding comprises performing a plurality of repeated iterations over the sequence.
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