Joint Carrier Frequency Offset and Phase Noise Estimation Based on Pseudo-Pilot in CO-FBMC/OQAM System

被引：18

作者：

You, Biyu ^{[1
]}

Yang, Liu ^{[1
]}

Luo, Fengguang ^{[1
]}

Fu, Songnian ^{[1
]}

Yang, Shuailong ^{[1
]}

Li, Bin ^{[1
]}

Liu, Deming ^{[1
]}

机构：

[1] Huazhong Univ Sci & Technol, Natl Engn Lab Next Generat Internet Access Syst, Sch Opt & Elect Informat, Wuhan 430074, Hubei, Peoples R China

来源：

IEEE PHOTONICS JOURNAL | 2019年 / 11卷 / 01期

基金：

中国博士后科学基金; 中国国家自然科学基金;

关键词：

Carrier frequency offset; phase noise; coherent system; OFDM/OQAM;

D O I：

10.1109/JPHOT.2019.2896930

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A simple method based on a designed pseudo-pilot is proposed for both carrier frequency offset (CFO) and phase noise (PN) estimation for the coherent optical offsetquadratic-amplitude modulation (QAM) based filterbank multicarrier (CO-FBMC/OQAM) transmission. Numerical simulations are performed to evaluate the performance of the proposed scheme for a 20 GBd/s FBMC/OQAM system. The simulation results show that a robust and precise CFO and PN estimation can be achieved simultaneously in comparison with traditional methods. For the CFO estimation, our method can achieve a wide CFO estimation range of [-10, +10 GHz]. As for the PN compensation, the tolerable combined laser linewidths under 1 dB optical signal noise ratio (OSNR) penalty constraint for 4/8/16/32-QAM are around 1.6 MHz, 0.8 MHz, 500 kHz, and 250 kHz, respectively. The results indicate that the proposed scheme can be used for a wide range CFO and PN compensation with better transmission performance in high speed CO-FBMC/OQAM system.

引用

页数：11

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