Capacity achieving multicarrier modulation and coding systems and methods
AssigneeMaxLinear, Inc.
InventorsRainer Strobel, Vladimir Oksman
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Abstract
A multi-carrier transmitter apparatus is disclosed. The apparatus includes an outer encoder, a shell mapper and an inner encoder. The outer encoder is configured to receive a signal, perform error correction using an outer code on the received signal and generate an outer encoder signal. The shell mapper is configured to perform constellation shaping on a subset of bits from the outer encoder signal and generate one or more constellation shaping bits. The inner encoder is configured to perform inner error correction/encoding using an inner code on a second subset of bits from the outer encoder signal and generate an inner correction signal.
Claims20
An apparatus, comprising:
- an encoder configured to generate error correction information using an error correction code on a signal to generate an encoder signal;
- a shell mapper configured to perform shaping on the signal over two or more groups of carriers with different constellation sizes to generate a shaped signal;
- and
- a modulator configured to generate an output signal based on the encoder signal and the shaped signal.
A method, comprising:
- generating error correction information using an error correction code on a signal to generate an encoder signal;
- performing shaping on the signal over two or more groups of carriers with different constellation sizes to generate a shaped signal;
- and
- generating an output signal based on the encoder signal and the shaped signal.
A non-transitory computer-readable storage medium storing executable instructions that, in response to execution, cause one or more processors to perform operations comprising:
- generate error correction information using an error correction code on a signal to generate an encoder signal;
- perform shaping on the signal over two or more groups of carriers with different constellation sizes to generate a shaped signal;
- and
- generate an output signal based on the encoder signal and the shaped signal.
Dependencies are inferred from the claim text.