基于射频谱和二维相位图及控制平面协同的动态光网络跨层光性能监测

项目名称： 基于射频谱和二维相位图及控制平面协同的动态光网络跨层光性能监测

项目编号： No.61471253

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 无线电电子学、电信技术

项目作者： 余长源

作者单位： 苏州工业园区新国大研究院

项目金额： 83万元

中文摘要： 网络向虚拟化发展，未来光网络光层路径动态重构，光信号传输质量存在不确定性，现有静态网络模式下光路径宿端单点光性能监测(OPM)无法定位传输损伤致因，为此，本项目研究光层OPM硬监测与控制平面协同OPM软监测相结合的跨层软硬一体化OPM模型、机制和方法：1）基于单采样结构时域二维相位图分析，同时监测色散(CD)、偏振模色散(PMD)、光信噪比(OSNR)；2）基于光纤光栅(FBG)无源滤波射频谱分析，同时监测CD、PMD、OSNR；3）基于通用多协议标记交换(GMPLS)控制平面协议扩展和跨层OPM软监测算法设计，实现端到端光路径的全网全程跨层软硬一体化OPM。单采样时域二维相位图识别和无源滤波射频谱分析方案成本低、效率高、可广布，控制平面协同跨层软监测可灵活实现光层路径传输损伤全网全程定位，因此，本项目适应未来动态光网络光性能监测需求。项目团队前期研究积累能保证研究任务完成质量。

中文关键词： 全光网；光网络控制；光性能监测；光传输损伤

英文摘要： As the next generation Internet evolves to virtualization, the end-to-end light path in future fiber optical networks will be dynamically reconfigured, so the transmission quality of optical signals will be undetermined. Current optical performance monitoring (OPM) technique is based on analysis of the signal at the receiver end in static networks, which is unable to diagnose and locate the optical impairments in future reconfigurable optical networks. Therefore, based on our preliminary research results, this project is proposed to investigate cross-layer OPM strategy. Cross-layer OPM is an integrated monitoring strategy by co-working between hardware based monitoring on physical layer and software based monitoring on control plane, including: 1) multiple optical impairments (chromatic dispersion (CD), polarization mode dispersion (PMD) and optical signal to noise ratio (OSNR)) monitoring based on single 2-dimension (2-D) phase portrait generated by using single sampling channel technique; (2) multiple optical impairment monitoring based on RF spectrum analysis of passive FBG filtered signal; (3) control plane protocol extension based on GMPLS and software algorithm design of cross-layer OPM. Our techniques can achieve comprehensive monitoring on the whole network by the cross-layer OPM with high operating efficiency, flexible distribution and low cost, which can meet the target of OPM on future dynamic and reconfigurable optical networks.

英文关键词： All optical networks;optical network control;optical performance monitoring;optical impirment