TY - JOUR
T1 - Carrier-less amplitude-phase geometric probabilistic hybrid shaping 16QAM scheme applied to data center networks
AU - Sheng, Xia
AU - Zhang, Qi
AU - Xin, Xiangjun
AU - Wang, Xishuo
AU - Tian, Qinghua
AU - Zhang, Lijia
AU - Tao, Ying
AU - Liu, Naijin
AU - Tian, Feng
AU - Pan, Xiaolong
AU - Zhang, Bo
N1 - Publisher Copyright:
© 2019 Society of Photo-Optical Instrumentation Engineers (SPIE).
PY - 2019/8/1
Y1 - 2019/8/1
N2 - A hybrid shaping scheme, carrier-less amplitude and phase modulation geometric-probabilistic hybrid shaping 16QAM (CAP-GPS-16QAM), is proposed for data center networks. The probabilistic shaping is achieved by applying the proposed probabilistic subset shaping to the constellation after geometric shaping (GS). An intensity modulation/direct detection experimental system of 5 GBaud is built to verify the proposal. The results show that the gains of the proposed scheme are 2.4, 2.6, and 3 dB compared with CAP-GS-16QAM, CAP-PAS-16QAM, and CAP-square-16QAM, respectively, at BER = 10-3. Meanwhile, in terms of generalized mutual information, the proposal improves the performance by 0.078, 0.125, and 0.153 bits/symbol compared with CAP-GS-16QAM, CAP-PAS-16QAM, and CAP-square-16QAM, respectively.
AB - A hybrid shaping scheme, carrier-less amplitude and phase modulation geometric-probabilistic hybrid shaping 16QAM (CAP-GPS-16QAM), is proposed for data center networks. The probabilistic shaping is achieved by applying the proposed probabilistic subset shaping to the constellation after geometric shaping (GS). An intensity modulation/direct detection experimental system of 5 GBaud is built to verify the proposal. The results show that the gains of the proposed scheme are 2.4, 2.6, and 3 dB compared with CAP-GS-16QAM, CAP-PAS-16QAM, and CAP-square-16QAM, respectively, at BER = 10-3. Meanwhile, in terms of generalized mutual information, the proposal improves the performance by 0.078, 0.125, and 0.153 bits/symbol compared with CAP-GS-16QAM, CAP-PAS-16QAM, and CAP-square-16QAM, respectively.
KW - carrier-less amplitude and phase modulation
KW - intensity modulation/direct detection
KW - probabilistic subset shaping
UR - http://www.scopus.com/inward/record.url?scp=85072405088&partnerID=8YFLogxK
U2 - 10.1117/1.OE.58.8.086105
DO - 10.1117/1.OE.58.8.086105
M3 - Article
AN - SCOPUS:85072405088
SN - 0091-3286
VL - 58
JO - Optical Engineering
JF - Optical Engineering
IS - 8
M1 - 086105
ER -