Presentation Information
[TuP-B-25]Complexity-Efficient LLR Estimation Using Piecewise Polynomial Fitting for LDPC Decoding in 100 Gb/s Bandwidth-Limited Flexible-Rate IM/DD System
○Yiao Zhang1, Xiangchen Kong1, Yanlu Huang1, Liyan Wu 1, Shangya Han1, Kai Jin1, Yanni Ou1, Kun Xu1 (1.Beijing University of Posts and Telecommunications)
Keywords:
Coding and forward error correction for optical communications,Digital signal processing,advanced modulation,coding and multiplexing,Modeling of transmission,of capacity or reach limits of transmission systems
We demonstrate a low complexity LLR estimation method based on piecewise polynomial fitting for LDPC decoding in 100Gb/s bandwidth-limited flexible-rate IM/DD system, which reduces complexity by more than 90% while maintaining almost equivalent performance.