Generalized Spatially-Coupled Product-Like Codes Using Zipper Codes With Irregular Degree

Zipper codes with irregular variable degree are studied. Two new interleaver maps -- chevron and half-chevron -- are described. Simulation results with shortened double-error-correcting Bose--Chaudhuri--Hocquenghem constituent codes show that zipper codes with chevron and half-chevron interleaver maps outperform staircase codes when the rate is below 0.86 and 0.91, respectively, at $10^{-8}$ output bit error rate operating point. In the miscorrection-free decoding scheme, both zipper codes with chevron and half-chevron interleaver maps outperform staircase codes. However, constituent decoder miscorrections induce additional performance gaps.Comment: 6 pages, 11 figures, paper accepted for the GLOBECOM 2023 Workshop on Channel Coding Beyond 5

Generalized Staircase Codes with Arbitrary Bit Degree

We introduce a natural generalization of staircase codes in which each bit is protected by arbitrarily many component codewords rather than two. This enables powerful energy-efficient FEC based on iterative decoding of Hamming components.Comment: Submitted to 2024 Optical Fiber Communication Conference (OFC 2024