摘要
We propose a trellis-compressed maximum likelihood sequence estimation(TC-MLSE)-assisted sliding-block decision feedback equalizer(DFE)to suppress the error propagation resulting from the DFE in high-speed systems.We use an out-ofrange detector to detect the end of burst errors from the DFE and activate the optional TC-MLSE to correct burst errors.We conduct experiments to transmit a 201-Gbit/s PAM-8 signal.The results show that the proposed method achieves a bit error rate of 3.65×10^(-3),which is close to that of MLSE.The optional MLSE is only activated when needed and processes 11.4%of the total symbols.Moreover,the proposed method compresses the maximum length of burst errors from 19 to 5.
作者
周家豪
张静
赵雪
王芮
李劲江
胡少华
张倩武
杨奇
许渤
邱昆
Jiahao Zhou;Jing Zhang;Xue Zhao;Rui Wang;Jinjiang Li;Shaohua Hu;Qianwu Zhang;Qi Yang;Bo Xu;Kun Qiu(Key Laboratory of Optical Fiber Sensing and Communication,University of Electronic Science and Technology of China,Chengdu 611731,China;Key Laboratory of Specialty Fiber Optics and Optical Access Networks,Shanghai University,Shanghai 200444,China;School of Optical and Electronic Information,Huazhong University of Science and Technology,Wuhan 430074,China)
基金
This work was supported by the National Natural Science Foundation of China(NSFC)(Nos.62301128,61871082,and 62111530150)
the Open Fund of IPOC(BUPT)(No.IPOC2020A011)
the STCSM(No.SKLSFO2021-01)
the Fundamental Research Funds for the Central Universities(Nos.ZYGX2020ZB043 and ZYGX2019J008).
