supported by China Postdoctoral Science Foundation (Nos.20070420013,200801030);Open Fund of National Laboratory on Local Fiber-Optic Communication Networks&Advanced Optical Communication Systems,Peking University,China,Guangxi Science Foundation (No.0731003);Science Foundation of Guangxi University (No.X071032).
In future high-capacity wavelength division multiplexed(WDM)optical networks,the failure of a network component such as a fiber link can lead to severe disruption in the networks’traffic.Hence,it is imperatively impo...
基于共享风险链路组(SRLG,shared risk link group)和P圈(P-Cycles,pre-configured cycles)的概念,研究了SRLG约束下p-Cycles的构造问题,引入SRLG完全分离p-Cycles的概念,基于SRLG的简单p-Cycles构造算法和获得更多p-Cycles的SRLG约束...
This work is supported by the National Science Fund for Distinguished Young Scholars (60325104);the National Natural Science Foundation of China (60572021);the SRFDP of M0E (20040013001).
Pre-configured cycles (p-cycles) can attain high capacity efficiency and fast protection switching times in wavelength division multiplexing (WDM) networks. This article proposes the weighted straddling link algor...
This work was supported by the Natural Science Foundation of China under Grants No. 69990540 and 90304002.
In this paper, a novel concept of multi-granularity p-cycle is proposed. In conventional p-cycle concept, all on-cycle spans have the same capacity. However, in multi-granularity p-cycle, each on-cycle span could have...
Aiming at minimizing spare capacity for optical WDM networks, we propose a new heuristic algorithm for preconfigured protection cycle (p-cycle) design. Numerical results show that the spare capacity obtained by our ne...