光通信研究Issue(2)：9-11,3.DOI:10.13756/j.gtxyj.2017.02.003
一种无源光网络系统中的长发光检测方法
A Novel Rogue Detection Method in PON System
摘要
Abstract
A novel rogue detection method is proposed to determine the ultimate result based on the validity of SD sampling over upstream optical signal.The OLT constructs a short timeslot and transmits it via an optical transceiver.Then, the OLT controls the optical transceiver to conduct a first SD sampling detection to the upstream optical signal according to the short timeslot to obtain a first detection result.Next, the OLT judges whether the upstream optical signal is valid according to the first detection result.If it is valid, the OLT constructs a long timeslot and transmits it via the optical transceiver, and controls the optical transceiver to conduct a second SD sampling detection to the upstream optical signal according to the long timeslot to obtain a second detection result.The OLT determines whether the current PON port is experiencing rogue behavior according to the second detection result.Compared to the common RSSI detection method, the proposed method has higher reliability and accuracy with the fact that no more fixed bandwidth will be occupied so as to assure the upstream bandwidth utilization as much as possible.关键词
无源光网络/光线路终端/长发光检测/信号检测Key words
passive optical network/optical line terminal/rogue detection/signal detection分类
信息技术与安全科学引用本文复制引用
黄健,王哲,郭小龙..一种无源光网络系统中的长发光检测方法[J].光通信研究,2017,(2):9-11,3.基金项目
国家"八六三"计划资助项目(2013AA014501) （2013AA014501）
