Timing Synchronization Method for Asymmetrically Clipped DC Biased Optical OFDM System  

作　　者：Yong Wang Yong Wang(College of Information & Communication Engineering, Harbin Engineering University, Harbin, China)

机构地区：[1]College of Information & Communication Engineering, Harbin Engineering University, Harbin, China

出　　处：《Optics and Photonics Journal》2016年第8期14-18,共6页光学与光子学期刊（英文）

摘　　要：In a typical intensity-modulated direct-detection optical system, the information is carried on the intensity of the optical signal, and therefore can only be positive. Existing synchronization methods for RF-based OFDM system cannot be used directly in asymmetrically clipped DC biased optical of DM (ADO-OFDM) system. In order to solve the above problem, according to the characteristics of ADO-OFDM signal, the modified training symbol is presented. The simulation results show that the modified synchronization method gives good performance.In a typical intensity-modulated direct-detection optical system, the information is carried on the intensity of the optical signal, and therefore can only be positive. Existing synchronization methods for RF-based OFDM system cannot be used directly in asymmetrically clipped DC biased optical of DM (ADO-OFDM) system. In order to solve the above problem, according to the characteristics of ADO-OFDM signal, the modified training symbol is presented. The simulation results show that the modified synchronization method gives good performance.

关 键 词：Optical Wireless Communication ADO-OFDM Timing Synchronization 

分 类 号：TN9[电子电信—信息与通信工程]