Soft-Decision Based Sliding-Window Decoding of Staircase Codes
Xin Dou, Min Zhu, Ji Zhang, Baoming Bai · 2018
Staircase codes are a class of braided block codes, which have been demonstrated to have good performance for high-speed optical communication. However, they are decoded based on iterative hard-decision sliding-window decoding. In this paper, we investigate the soft-decision decoding (SDD) and propose a Chase-Pyndiah algorithm based sliding-window decoder for staircase codes over the AWGN channel. The decoding complexity is also analyzed. Simulation results show that with the proposed decoding algorithm, the performance of staircase codes can be improved by 0.3 ~ 2 dB.