Two-parallel concatenated BCH super-FEC architecture for 100-GB/S optical communications

초록

This paper presents a high-speed Forward Error Correction (FEC) architecture based on the concatenated BCH code for 100-Gb/s optical communication systems. The concatenated BCH code consists of BCH(3860, 3824) and BCH(2040, 1930), which provides 7.98dB net coding gain at 10 corrected bit error rate without additive overhead as compared with the Reed-Solomon(255, 239) standardized in ITU-T G.975 and G.709. This architecture has been implemented with 90-nm CMOS standard cell technology in a supply voltage of 1.1V. The implementation results show that the concatenated BCH Super-FEC architecture can operates at a clock frequency of 400MHz and has a throughput of 102.4-Gb/s for 90-nm CMOS technology. ©2009 IEEE.