Linear-code-based probabilistic shaping
AssigneeQUALCOMM Incorporated
InventorsWei YANG, Jing JIANG, Thomas Joseph RICHARDSON
Life of this patent
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Abstract
A transmitter is provided that shapes uniformly-distributed bits into a non-uniformly distributed bits according to a parity check matrix of a linear code such that a product of the parity check matrix and the non-uniformly distributed bits equals the uniformly-distributed bits. Similarly, receiver is provided that recovers the uniformly-distributed bits from the non-uniformly distributed bits through a multiplication of the non-uniformly-distributed bits with the parity check matrix.
Claims30
A transmitter, comprising:
- a decoder configured to decode a plurality of non-uniformly-distributed bits from a plurality of uniformly-distributed information bits so that a product of the plurality of non-uniformly-distributed bits with a parity check matrix for a linear code equals the plurality of uniformly-distributed information bits.
A receiver, comprising:
- a low-density parity-check encoder configured to multiply a plurality of non-uniformly-distributed bits with a parity check matrix for a low-density parity-check code to form a plurality of uniformly-distributed bits.
A method of shaping a plurality of uniformly-distributed bits, comprising:
- decoding a plurality of non-uniformly-distributed bits from the plurality of uniformly-distributed bits so that a product of the non-uniformly-distributed bits with a parity check matrix for a linear code equals the plurality of uniformly-distributed bits.
A transmitter, comprising:
- a decoder configured to decode a plurality of non-uniformly-distributed non-binary symbols from a plurality of uniformly-distributed non-binary information symbols so that a product of the plurality of non-uniformly-distributed non-binary symbols with a parity check matrix for a linear code equals the plurality of uniformly-distributed non-binary information symbols.
Dependencies are inferred from the claim text.