TY - GEN
T1 - Clock Recovery Based on Adaptive Phase Error Detection for Coherent Optical Transmission Systems
AU - Niu, Xiaoyuan
AU - Wang, Yongjun
AU - Liu, Xinyu
AU - Xu, Hui
AU - Pan, Yucheng
AU - Li, Jun
AU - Xin, Xiangjun
N1 - Publisher Copyright:
© 2019 IEEE.
PY - 2019/8
Y1 - 2019/8
N2 - Traditional clock recovery techniques rely on Gardner for phase error detection to recover the original signal. An adaptive phase splitting detection technique is proposed by joint channel equalization in this paper. The loop judges the current error by the error of the previous moment, reduces the phase error jitter, and improves the stability of the system. In addition, the algorithm works well for the same phase of adjacent symbols through phase splitting techniques. In fiber channel, this scheme is more suitable for the case of small roll-off factor (ROF). Simulation results show that the algorithm is suitable for signals modulated by MQAM. The algorithm performs very well even when the ROF approaches 0.
AB - Traditional clock recovery techniques rely on Gardner for phase error detection to recover the original signal. An adaptive phase splitting detection technique is proposed by joint channel equalization in this paper. The loop judges the current error by the error of the previous moment, reduces the phase error jitter, and improves the stability of the system. In addition, the algorithm works well for the same phase of adjacent symbols through phase splitting techniques. In fiber channel, this scheme is more suitable for the case of small roll-off factor (ROF). Simulation results show that the algorithm is suitable for signals modulated by MQAM. The algorithm performs very well even when the ROF approaches 0.
KW - Adaptive phase error detection
KW - Channel equalization
KW - Coherent optical communication
KW - Phase splitting timing recovery
UR - http://www.scopus.com/inward/record.url?scp=85078026458&partnerID=8YFLogxK
U2 - 10.1109/ICOCN.2019.8933867
DO - 10.1109/ICOCN.2019.8933867
M3 - Conference contribution
AN - SCOPUS:85078026458
T3 - 2019 18th International Conference on Optical Communications and Networks, ICOCN 2019
BT - 2019 18th International Conference on Optical Communications and Networks, ICOCN 2019
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 18th International Conference on Optical Communications and Networks, ICOCN 2019
Y2 - 5 August 2019 through 8 August 2019
ER -