An effective carrier phase estimation scheme in faster than Nyquist WDM transmission system
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- 作者：Dongwei Pan ; Chengcheng Li ; Yiqiao Feng ; Xiaoguang Zhang
- 关键词：Fiber optics and optical communications ; Coherent communications ; Faster than Nyquist
- 刊名：Photonic Network Communications
- 出版年：2016
- 出版时间：October 2016
- 年：2016
- 卷：32
- 期：2
- 页码：253-258
- 全文大小：2,437 KB
- 刊物主题：Computer Communication Networks; Electrical Engineering; Characterization and Evaluation of Materials;
- 出版者：Springer US
- ISSN：1572-8188
- 卷排序：32
文摘
We propose a carrier phase estimation method using unequaled digital pilot tone in a faster than Nyquist WDM transmission system, in which the digital pilot tone is employed to estimate laser phase noise induced by the lasers located at the transmitter and the receiver ends. The method can effectively overcome the scale of the inter-symbol interference introduced by FTN signaling, with the good features of high phase noise tolerance and simple hardware complexity.