AON中基于网络编码的单链路故障定位机制  

Network coding-based fault location mechanism for single links in all optical networks

作　　者：王汝言[1] 何健东[1] 吴大鹏[1] 彭海英[1] 

机构地区：[1]重庆邮电大学光互联网及光信息处理研究所,重庆400065

出　　处：《光通信研究》2011年第6期11-14,共4页Study on Optical Communications

基　　金：国家自然科学基金资助项目(60972096);重庆市科委自然科学基金资助项目(CSTC2011BA2041);重庆邮电大学启动基金资助项目(A2009-07);重庆邮电大学基金资助项目(A2011-14);重庆市教委资助项目(KJ110531)

摘　　要：文章提出了一种AON(全光网络)中基于网络编码理论的单链路故障定位机制。利用网络编码在信息处理和融合上的优势,可使从单个信源发出的信息经过不同的探测通路后得到不同的处理。若经过每条链路的探测通路的集合互不相同,则可以根据目的节点接收到的探测信息定位故障链路。仿真结果表明,该机制能够在保证定位准确性的同时有效地降低故障定位的开销。This paper presents a network coding-based fault location mechanism for single links in All-Optical Networks（AON）.Utilizing the advantages of the networking coding in information processing and converging,it processes signals from a single information source differently after they pass different probing paths.If the probing path sets passing through each link are different from each other,the faulty link can be located according to the probed information received at the target node.Simulation results show that this mechanism can effectively reduce the fault location cost,while ensuring the location accuracy.

关 键 词：全光网络 网络编码 故障定位 

分 类 号：TN915[电子电信—通信与信息系统]