WDM网感知物理层光信道传输质量的量化标识  

The quantification identification to transmission quality of optical channels in physical layer based on perception of WDM network

作　　者：潘业权[1] 朱娜[1] 沈若愚[1] 钱琴[1] 

机构地区：[1]江苏大学计算机科学与通信工程学院,江苏镇江212013

出　　处：《光通信技术》2010年第12期15-17,共3页Optical Communication Technology

基　　金：国家自然科学基金项目(60702056)资助

摘　　要：为支持QoS业务,WDM网络需感知物理层光信道的传输质量。由于光信号损伤具有随机波动性,感知信号损伤参数如果一有波动变化就发送信令,将浪费带宽资源。通过分析物理层光信号线性损伤的主要影响因素,建立可监测和可表述的感知参数,找出影响传输质量质变的临界值,并对其进行量化标识,以降低信令发送频率,从而节省带宽资源。In order to support QoS service,it is need to perceive the quality of transmission（QoT） of optical channel in the physical layer of WDM network.Moreover,the impairments are stochastic fluctuation.If signaling is sent as soon as the perceived parameters just are a little changed.It will waste bandwidth resources.This paper analyzes major influence factors of line impairments in physical layer and builds parameters which can be monitored and described.Then it finds their critical values to quantify and identify them.Thus the network can reduce to send the signaling,sparing the bandwidth resource.

关 键 词：WDM 传输质量 光信号物理损伤 量化 

分 类 号：TN929.11[电子电信—通信与信息系统]