Layered ternary message passing decoder of LDPC codes for 50G-PON.

Area of Science:

• Telecommunications Engineering
• Coding Theory
• Optical Networks

Background:

• 50G passive optical networks (50G-PON) require advanced error correction codes.
• Low-density parity-check (LDPC) codes are crucial for achieving high data rates.
• Existing decoders may face limitations in performance and precision.

Purpose of the Study:

• To introduce a novel layered ternary message passing (LTMP) decoder for LDPC codes.
• To enhance the error correction capabilities of LDPC codes in 50G-PON systems.
• To optimize decoder parameters for superior performance.

Main Methods:

• Development of a layered ternary message passing (LTMP) decoder architecture.
• Application of density evolution analysis to evaluate decoder performance.
• Implementation of an optimization method for decoder parameter combinations.

Main Results:

• The LTMP decoder demonstrates significant improvements in error correction.
• The layered architecture and parameter optimization contribute to enhanced performance.
• Exceptional capabilities were observed even under low-precision input conditions.

Conclusions:

• The proposed LTMP decoder is highly effective for LDPC codes in 50G-PON.
• This advancement offers robust error correction for next-generation optical networks.
• The decoder's performance under low precision highlights its practical applicability.