Dynamic segment shared protection algorithm for reliable wavelength-division-multiplexing mesh networks

被引:9
作者
Cao, J [1 ]
Guo, L [1 ]
Yu, HF [1 ]
Li, LM [1 ]
机构
[1] Univ Elect Sci & Technol China, Key Lab Broadband Opt Fiber Transmiss & Commun Ne, Chengdu 610054, Peoples R China
来源
OPTICS EXPRESS | 2005年 / 13卷 / 08期
关键词
D O I
10.1364/OPEX.13.003087
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
With the maturation of the technology of Wavelength-Division-Multiplexing (WDM) in optical networks, the survivable design has become a key issue. In this paper, we propose a Segment Shared Protection Algorithm (SSPA), which is based on the reliability of the networks and the different levels of the fault tolerance requested by the users, to protect the single-link failure in WDM optical networks. The main idea of the SSPA is to provide a backup path for a segment, which is divided in accordance with the policy of the Differentiated Reliability (DiR), on the primary path of each connection request. Under the guarantee of the blocking probability and the connection's reliability, the SSPA has higher resource utilization ratio and faster recovery time than the previous algorithm PSPA-DiR. We evaluate the effectiveness of the SSPA and the results are found to be promising. (C) 2005 Optical Society of America.
引用
收藏
页码:3087 / 3095
页数:9
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