Marvell Asia Pte., Ltd.

Inphi Corporation

Cristian Cavenio

Mario Rafael Hueda

Mario Alejandro Castrillon

Ramiro Rogelio Lopez

Damian Alfonso Morero

Gabriel Infante

Martin Carlos Asinari

Genaro Bergero

Teodoro Goette

Damián A Morero

A method and structure for probabilistic shaping and compensation techniques in coherent optical receivers. According to an example, the present invention provides a method and structure for an implementation of distribution matcher encoders and decoders for probabilistic shaping applications. The techniques involved avoid the traditional implementations based on arithmetic coding, which requires intensive multiplication functions. Furthermore, these probabilistic shaping techniques can be used in combination with LDPC codes through reverse concatenation techniques.

Probabilistic shaping techniques for high performance coherent optical transceivers

A method and device for energy-efficient decoders. The decoder device can include a plurality of decoder modules configured to process an input data signal having a plurality of forward error correction (FEC) codewords. This plurality of decoder modules can include at least a first decoder followed by a second decoder. The first decoder can be low-power to first eliminate most of the errors of the codewords and the second decoder can be high-performance to correct the remaining errors. Alternatively, the first decoder can be high-performance to correct the codewords until the low-power decoder can correct the remaining errors. A classifier module can be included to determine portions of the codewords to be directed to any one of the plurality of decoder modules. These implementations can be extended to use additional decoders with different decoding algorithms and optimized to maximize decoder performance given a maximum power constraint.

Method and device for energy-efficient decoders

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Santa Clara, CA, United States of America

Cristian Cavenio