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LDPC-CODED MODULATION FOR ULTRA-HIGH-SPEED OPTICAL TRANSPORT IN THE PRESENCE OF PHASE NOISE
LDPC-CODED MODULATION FOR ULTRA-HIGH-SPEED OPTICAL TRANSPORT IN THE PRESENCE OF PHASE NOISE
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机译:相位噪声存在下超高速光传输的LDPC编码调制
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摘要
Methods and systems for decoding a signal include compensating for impairments in a received signal using at least carrier phase estimation, where residual phase error remains after compensation; calculating symbol log-likelihood ratios (LLRs) for symbols in the compensated signal using Monte Carlo integration; demapping the symbols in the compensated signal using the symbol LLRs and extrinsic information from signal decoding to produce one or more estimated codewords; and decoding each estimated codeword with a decoder that generates a decoded codeword and extrinsic information.
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