High data rate and flexible hardware QC-LDPC decoder for satellite optical communications
Vincent Pignoly, Bertrand Le Gal, Christophe Jégo, Benjamin Gadat · 2018
Satellite optical communications are trendy for future satellite wireless communications and introduce new challenges concerning throughput and error correction for the channel decoder. This paper details a custom solution based on LDPC code and architecture co-design. This solution was designed to deliver an efficient trade-off in terms of decoder throughput and error correction performance. A flexible architecture that implements an Offset Min-Sum algorithm on Field-Programmable Gate Array (FPGA) is proposed. A resulting system composed of 5 elementary LDPC decoders that fit in a single Zynq Ultrascale+ FPGA device reaches more than 10 Gbps with error correction performance similar or better than present current satellite communication standards.