OTN中FEC技术的应用  

Application of FEC in optical transport network

作　　者：谢军[1] 冯浩 蒋旭 

机构地区：[1]电子科技大学宽带光纤传输与通信网技术教育部重点实验室,四川成都610054 [2]大唐电信技术有限公司光通信分公司,四川成都610062

出　　处：《光通信研究》2005年第3期24-27,共4页Study on Optical Communications

摘　　要：光传送网(OTN)是随着WDM技术的发展而产生的,ITU T在2001年提出了其接口标准—G.709建议。该建议采用数字包封技术,定义了数据的封装格式,将前向纠错(FEC)技术引入光传送网标准接口中。文章分析了OTN的帧格式,着重介绍了其采用的FEC技术。将G.709标准应用到实际光接口盘的设计中,并通过实验验证了FEC技术的良好效果。OTN(Optical Transport Network)is developed with the progress of WDM technology. The standard G.709 (interface for the OTN) was proposed by ITU-T in 2001.Digital wrapper technology was adopted in the recommendation.The frame structure was defined and FEC technology was introduced in the standard too. The frame structure was analysised and the theory of FEC was introduced in this paper.Digital wrapper technology was used in the design of optical transponder unit.The benefits of using FEC technology were verified by experiment.

关 键 词：光传送网 前向纠错 数字包封 

分 类 号：TN911[电子电信—通信与信息系统]