透明光网络中多损伤约束物理层模型  

Multi-constraint based physical layer model in transparent network

作　　者：赵继军[1] 陈曦[1] 王丽荣[2] 

机构地区：[1]河北工程大学信息与电气工程学院,河北邯郸056038 [2]邯郸职业技术学院,河北邯郸056001

出　　处：《光通信技术》2011年第1期14-17,共4页Optical Communication Technology

基　　金：河北省自然科学基金(项目编号:F2010001045)资助

摘　　要：从透明光网络物理损伤的多样性和复杂性出发,分析了目前物理损伤感知光网络中物理层损伤因素考虑比较单一的问题。在此基础上提出了一种将多种物理损伤量化为沿光信号传播方向的OSNR衰减的物理层模型,该模型考虑了多种物理层损伤,因此可以更加精确的评估光路损伤情况,以帮助在选路时有效规避物理层损伤的影响。Setting out from the diversity and complexity of the physical impairment,the paper analyses the recent issue of considering physical impairment in impaired-aware optical network relatively simple.On these bases,a physical model is proposed that multi-physicals are quantified to the OSNR degradation along the optical signal propagation.This model is consider the miscellaneous items of physical impairment,therefore it could be evaluate the physical impairment status of the optical light path more accurately,assisting to avoid the impact of phsical impairement in routing.

关 键 词：透明光网络 物理层损伤 多约束模型 OSNR 

分 类 号：TN929.11[电子电信—通信与信息系统]