Analysis and Modeling of k-regular and k-connected Protection Structure in Ultra-High Capacity Optical Networks  

作　　者：LI Xin HUANG Shanguo ZHANG Jie ZHAO Yongli GU Wanyi WANG Yang 

机构地区：[1]China Electric Power Research Institute [2]State Key Laboratory of Information Photonics and Optical Communications,Beijing University of Posts and Telecommunitions

出　　处：《China Communications》2015年第3期106-119,共14页中国通信（英文版）

基　　金：supported by the Major State Basic Research Development Program of China(973 Program)(Nos.2010CB328202,2010CB328204,and 2012CB315604);the HiTech Research and Development Program of China(863 Program)(Nos.2012AA01Z301,and 2012AA011302);the National Natural Science Foundation of China(No.60702005);the Beijing Nova Program(No.2011065);the Fundamental Research Funds for the Central Universities

摘　　要：This paper proposes k-regular and k-connected(k&k) structure against multifaults in ultra-high capacity optical networks.Theoretical results show that pre-configured k&k structure can reach the lower bound on logical redundancy.The switching time of k&k protection structure is as quickly as ringbased protection in SDH network.It is the optimal protection structure in ultra-high capacity optical networks against multi-faults.We develop the linear programming model for k&k structure and propose a construction method for k&k structure design.Simulations are conducted for spare spectrum resources effi ciency of the pre-confi gured k&k structure under multi-faults on representative COST239 and NSFnet topologies.Numerical results show that the spare spectrum resources efficiency of k&k structure can reach the lower bound on logical redundancy in static networks.And it can largely improve spare spectrum resources effi ciency compared with p-cycles based protection structure without reducing protection effi ciency under dynamic traffi cs.This paper proposes k-regular and k-connected（k＆k） structure against multifaults in ultra-high capacity optical networks.Theoretical results show that pre-configured k＆k structure can reach the lower bound on logical redundancy.The switching time of k＆k protection structure is as quickly as ringbased protection in SDH network.It is the optimal protection structure in ultra-high capacity optical networks against multi-faults.We develop the linear programming model for k＆k structure and propose a construction method for k＆k structure design.Simulations are conducted for spare spectrum resources effi ciency of the pre-confi gured k＆k structure under multi-faults on representative COST239 and NSFnet topologies.Numerical results show that the spare spectrum resources efficiency of k＆k structure can reach the lower bound on logical redundancy in static networks.And it can largely improve spare spectrum resources effi ciency compared with p-cycles based protection structure without reducing protection effi ciency under dynamic traffi cs.

关 键 词：multi-faults k-regular and k-connected structure ultra-high capacity optical networks 

分 类 号：TN929.1[电子电信—通信与信息系统]