Gao, Y., Li, Z., Zhang, Q., Zhao, Q., Wang, C., Li, L., Wang, F., Wang, Y., Zhou, S., Tian, F., Tian, Q., & Xin, X. (2024). Spectral analysis based blind frequency offset estimation for digital subcarrier multiplexing systems with adjustable roll-off factors and various modulation formats. Optics Express, 32(15), 26318-26331. https://doi.org/10.1364/OE.526002
Gao, Yuan ; Li, Zhipei ; Zhang, Qi et al. / Spectral analysis based blind frequency offset estimation for digital subcarrier multiplexing systems with adjustable roll-off factors and various modulation formats. In: Optics Express. 2024 ; Vol. 32, No. 15. pp. 26318-26331.
@article{2a1987fcdc6e43e3974c863a217ba20c,
title = "Spectral analysis based blind frequency offset estimation for digital subcarrier multiplexing systems with adjustable roll-off factors and various modulation formats",
abstract = "We proposed a blind frequency offset estimation (FOE) method for digital subcarrier multiplexing (DSM) signals. By utilising spectral information from the DSM signal and analysing the correlation between the frequency offset (FO) and the summed power of the signal spectrum, the proposed FOE method can accurately and effectively handle various modulation schemes assigned to each subcarrier. The proposed FOE method exhibits a flexibility to the roll-off factor of the root raised cosine (RRC) spectral shaping and can achieve a high level of accuracy in FOE under different roll-off factors and subcarrier numbers, with an FOE error of less than 30 MHz under a fast Fourier transform (FFT) size of 2048. Additionally, the proposed FOE method has advantages in terms of the computational complexity compared to the existing method. The performance of the proposed FOE method is experimentally verified for 48Gbaud 16QAM DSM signals in a coherent detection system.",
author = "Yuan Gao and Zhipei Li and Qi Zhang and Qihan Zhao and Chenchen Wang and Li Li and Fu Wang and Yongjun Wang and Sitong Zhou and Feng Tian and Qinghua Tian and Xiangjun Xin",
note = "Publisher Copyright: {\textcopyright} 2024 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement.",
year = "2024",
month = jul,
day = "15",
doi = "10.1364/OE.526002",
language = "English",
volume = "32",
pages = "26318--26331",
journal = "Optics Express",
issn = "1094-4087",
publisher = "Optica Publishing Group",
number = "15",
}
Gao, Y, Li, Z, Zhang, Q, Zhao, Q, Wang, C, Li, L, Wang, F, Wang, Y, Zhou, S, Tian, F, Tian, Q & Xin, X 2024, 'Spectral analysis based blind frequency offset estimation for digital subcarrier multiplexing systems with adjustable roll-off factors and various modulation formats', Optics Express, vol. 32, no. 15, pp. 26318-26331. https://doi.org/10.1364/OE.526002
Spectral analysis based blind frequency offset estimation for digital subcarrier multiplexing systems with adjustable roll-off factors and various modulation formats. / Gao, Yuan
; Li, Zhipei; Zhang, Qi et al.
In:
Optics Express, Vol. 32, No. 15, 15.07.2024, p. 26318-26331.
Research output: Contribution to journal › Article › peer-review
TY - JOUR
T1 - Spectral analysis based blind frequency offset estimation for digital subcarrier multiplexing systems with adjustable roll-off factors and various modulation formats
AU - Gao, Yuan
AU - Li, Zhipei
AU - Zhang, Qi
AU - Zhao, Qihan
AU - Wang, Chenchen
AU - Li, Li
AU - Wang, Fu
AU - Wang, Yongjun
AU - Zhou, Sitong
AU - Tian, Feng
AU - Tian, Qinghua
AU - Xin, Xiangjun
N1 - Publisher Copyright:
© 2024 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement.
PY - 2024/7/15
Y1 - 2024/7/15
N2 - We proposed a blind frequency offset estimation (FOE) method for digital subcarrier multiplexing (DSM) signals. By utilising spectral information from the DSM signal and analysing the correlation between the frequency offset (FO) and the summed power of the signal spectrum, the proposed FOE method can accurately and effectively handle various modulation schemes assigned to each subcarrier. The proposed FOE method exhibits a flexibility to the roll-off factor of the root raised cosine (RRC) spectral shaping and can achieve a high level of accuracy in FOE under different roll-off factors and subcarrier numbers, with an FOE error of less than 30 MHz under a fast Fourier transform (FFT) size of 2048. Additionally, the proposed FOE method has advantages in terms of the computational complexity compared to the existing method. The performance of the proposed FOE method is experimentally verified for 48Gbaud 16QAM DSM signals in a coherent detection system.
AB - We proposed a blind frequency offset estimation (FOE) method for digital subcarrier multiplexing (DSM) signals. By utilising spectral information from the DSM signal and analysing the correlation between the frequency offset (FO) and the summed power of the signal spectrum, the proposed FOE method can accurately and effectively handle various modulation schemes assigned to each subcarrier. The proposed FOE method exhibits a flexibility to the roll-off factor of the root raised cosine (RRC) spectral shaping and can achieve a high level of accuracy in FOE under different roll-off factors and subcarrier numbers, with an FOE error of less than 30 MHz under a fast Fourier transform (FFT) size of 2048. Additionally, the proposed FOE method has advantages in terms of the computational complexity compared to the existing method. The performance of the proposed FOE method is experimentally verified for 48Gbaud 16QAM DSM signals in a coherent detection system.
UR - http://www.scopus.com/inward/record.url?scp=85198901720&partnerID=8YFLogxK
U2 - 10.1364/OE.526002
DO - 10.1364/OE.526002
M3 - Article
AN - SCOPUS:85198901720
SN - 1094-4087
VL - 32
SP - 26318
EP - 26331
JO - Optics Express
JF - Optics Express
IS - 15
ER -
Gao Y, Li Z, Zhang Q, Zhao Q, Wang C, Li L et al. Spectral analysis based blind frequency offset estimation for digital subcarrier multiplexing systems with adjustable roll-off factors and various modulation formats. Optics Express. 2024 Jul 15;32(15):26318-26331. doi: 10.1364/OE.526002