| Autor: |
Biyu You, Liu Yang, Fengguang Luo, Songnian Fu, Shuailong Yang, Bin Li, Deming Liu |
| Jazyk: |
angličtina |
| Rok vydání: |
2019 |
| Předmět: |
|
| Zdroj: |
IEEE Photonics Journal, Vol 11, Iss 1, Pp 1-11 (2019) |
| Druh dokumentu: |
article |
| ISSN: |
1943-0655 |
| DOI: |
10.1109/JPHOT.2019.2896930 |
| Popis: |
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 offset-quadratic-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. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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