一种副载波单边带分插复用的OFDM-PON模型  

A novel OFDM-PON architecture using single-sideband subcarrier multiplexing

作　　者：郑曦[1] 侯春宁[1] 刘霄[1] 邵宇丰[1] 邹书敏[1] 李欣颖[1] 张俊文[1] 方武良[1] 迟楠[1] 

机构地区：[1]复旦大学通信科学与工程系专用集成电路与系统国家重点实验室,上海200433

出　　处：《光通信研究》2010年第5期7-10,共4页Study on Optical Communications

基　　金：国家"九七三"计划资助项目(2010CB328300);国家自然科学基金资助项目(600837004;60777010);国家"八六三"计划资助项目(2009AA01Z253);浦江人才项目

摘　　要：提出并证明了一种基于副载波单边带分插复用的正交频分复用无源光网络(OFDM-PON)系统的新型结构。该结构的下行传输是基于单边带的OFDM-4-正交幅度调制(QAM),传输速率为10 Gbit/s;而上行传输则是利用下行信号中保留的另一条边带进行2.5 Gbit/s速率的幅移键控(ASK)调制,采用时分多路接入方式。该方案可以较好地避免双向传输中的后向瑞利散射,考虑后向散射情况下,下行信号功率代价<0.8 dB,上行信号功率代价<1.8 dB。We propose and demonstrate a novel architecture for the SSB-ADM-based OFDM-PON system.Its downlink transmission is based on 10 Gbit/s SSB-based OFDM-4-QAM modulation,while the uplink transmission is based on 2.5 Gbit/s ASK modulation in the Time Division Multiple Access（TDMA） mode by using the other sideband retained in the downlink signals.This architecture can perfectly overcome the Rayleigh backscattering effect in the bidirectional transmission.When the backscattering effect is considered,the power penalty will be 0.8 dB for downlink signals and 1.8 dB for uplink signals.

关 键 词：正交频分复用 无源光网络 单边带 

分 类 号：TN915.6[电子电信—通信与信息系统]