相干光OFDM系统中相位噪声补偿算法的研究进展  

Research progress on the compensation algorithm of the phase noise in CO-OFDM systems

作　　者：袁建国[1] 南蜀崇 辛雪琪 YUAN Jianguo;NAN Shuchong;XIN Xueqi(Chongqing Key Laboratory of Photo-electronic Information Sensing and Transmitting Technology,Chongqing University of Posts and Telecommunications,Chongqing 400065,China)

机构地区：[1]重庆邮电大学光电信息感测与传输技术重庆市重点实验室

出　　处：《激光杂志》2018年第10期1-8,共8页Laser Journal

基　　金：国家自然科学基金项目(No.61471075);重庆市基础与前沿研究计划项目(No.csts2017jcyj AX0427)

摘　　要：随着光通信系统的迅速发展,相干光正交频分复用（Coherent Optical Orthogonal Frequency-Division Multiplexing,CO-OFDM）系统因其能够有效地对抗光纤传输过程中的由色度色散、偏振膜色散等因素引起的符号间干扰,同时系统的接收机灵敏度高,谱效率高等优点而成为光通信系统的一个研究热点。由于CO-OFDM系统中相位噪声对系统性能的影响较大,因而本文针对CO-OFDM系统中相位噪声补偿算法展开了综述性研究。从CO-OFDM系统的概念、相位噪声模型、相位噪声对CO-OFDM系统的影响以及相位噪声的补偿算法等方面进行了分析,概述并探讨了CO-OFDM系统中相位噪声补偿算法的研究进展。分析并总结了目前COOFDM系统中相位噪声补偿算法研究中亟待解决的关键问题,为今后深入开展相关研究提供理论指导。With the rapid development of optical communication systems,the coherent optical orthogonal frequency division multiplexing（ CO-OFDM） system has become a research hotspot in optical communication systems because it can effectively resist the inter-symbol interference caused by chromatic dispersion and polarization film dispersion in the optical fiber transmission,and its system has the advantages such as the better receiver sensitivity and higher spectral efficiency. Since the phase noise in CO-OFDM systems has a great influence on the system performance,this paper makes a comprehensive research on the phase noise compensation algorithm for CO-OFDM systems. The concept of CO-OFDM systems,the phase noise model and the impact of the phase noise on CO-OFDM systems as well as the compensation algorithm of the phase noise are analyzed. The research progress of the phase noise compensation algorithm for CO-OFDM systems is summarized and discussed. The key problems to be solved in the research of the phase noise compensation algorithms for CO-OFDM systems are analyzed and summarized,which can play a very important theoretical guidance role in the related future research.

关 键 词：相位噪声 补偿算法 符号间干扰 相干光正交频分复用 

分 类 号：TN209[电子电信—物理电子学]