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BIT-INTERLEAVED CODED MODULATION USING LOW DENSITY PARITY CHECK (LDPC) CODES
BIT-INTERLEAVED CODED MODULATION USING LOW DENSITY PARITY CHECK (LDPC) CODES
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机译:使用低密度奇偶校验(LDPC)编码的比特交织编码调制
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摘要
An approach is provided for bit labeling of a signal constellation. A transmitter (200) generates encoded signals using, according to one embodiment, a structured parity check matrix of a Low Density Parity Check (LDPC) code. The transmitter (200) includes an encoder (203) for transforming an input message into a codeword represented by a plurality of set of bits. The transmitter (200) includes logic for mapping non-sequentially (e.g., interleaving) one set of bits into a higher order constellation (Quadrature Phase Shift Keying (QPSK), 8-PSK, 16-APSK (Amplitude Phase Shift Keying), 32-APSK, etc.), wherein a symbol of the higher order constellation corresponding to the one set of bits is output based on the mapping.
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