An effective sampling clock synchronization method for continuous- and burst-mode transmission in OFDMA-PONs

作者：Cai, Yufeng; Zhang, Qianwu^*; Chen, Rongrong; Kuang, Caixia; Zhang, Zhen; Li, Yingchun; Chen, Jian

来源：Optics Communications, 2017, 384: 78-84.

DOI：10.1016/j.optcom.2016.10.012

• SFO
• OFDMA
• Long training symbol
• Burst-mode

A sampling frequency offset (SFO) estimation and compensation method based on frequency domain correlation of long training symbols for orthogonal frequency division multiple access passive optical network (OFDMA-PON) is experimentally demonstrated, which shows excellent performances in transmissions of continuous- and burst-mode. For continuous- mode transmission under a certain SFO, the proposed scheme can perform effectively in a wide received optical power (RoP) range from -8 dBm to -2 dBm and has high estimation veracity and a large applicable range as large as 100 ppm at a certain RoP. Similar behavior is also demonstrated under burst-mode transmission with tiny performance degradation caused by the fact that the algorithm needs time to reach a stable status of synchronization.

• 出版日期2017-2-1
• 单位上海大学