Communication system, receiver, and communication method for correcting transmission communication errors
AssigneeMitsubishi Electric Corporation
InventorWataru Matsumoto
Life of this patent
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Abstract
A communication system includes a transmitter and a receiver. The transmitter transmits a signal encoded by a low-density parity-check (LDPC) coding. The receiver includes a decoder, a phase error estimator, and a correction unit. The decoder decodes the signal at a plurality of sampling points using a single iteration of sum-product decoding. The phase error estimator estimates a phase error of the signal using minimum mean square error (MMSE) estimation and soft decision information obtained by the sum-product decoding. The correction unit corrects the signal using the phase error.
Claims17
A communication system comprising:
- a transmitter that transmits a signal encoded by a low-density parity-check (LDPC) coding;
- and
- a receiver that includes
- a decoder that decodes the signal at a plurality of sampling points using a single iteration of sum-product decoding;
- a phase error estimator that estimates a phase error of the signal using minimum mean square error (MMSE) estimation and soft decision information obtained by the sum-product decoding;
- and
- a correction unit that corrects the signal using the phase error.
A receiver comprising:
- a decoder that decodes a low-density parity-check (LDPC) encoded signal at a plurality of sampling points using a single iteration of sum-product decoding;
- a phase error estimator that estimates a phase error of the signal using minimum mean square error (MMSE) estimation and soft decision information obtained by the sum-product decoding;
- and
- a correction unit that corrects the signal using the phase error.
A communication method comprising:
- decoding a low-density parity-check (LDPC) encoded signal at a plurality of sampling points using a single iteration of sum-product decoding;
- estimating a phase error of the signal using minimum mean square error (MMSE) estimation and soft decision information obtained by sum-product decoding;
- and
- correcting the signal using the phase error.
Dependencies are inferred from the claim text.