P-Cycles-Based Dynamic Protection Provisioning in Optical WDM Networks(Optical Network Control and Management, <Joint Special Section>Recent Progress in Optoelectronics and Communications)

• ZHONG Wen-De

  Network Technology Research Centre, School of Electrical and Electronic Engineering, Nanyang Technological University

• ZHANG Zhenrong

  Network Technology Research Centre, School of Electrical and Electronic Engineering, Nanyang Technological University

抄録

In high-capacity optical WDM networks, the failure of a network component such as a fiber link may disconnect many optical lightpaths, leading to severe disruption in network services. Therefore it is imperatively important to provide fast and full protection against any failure in optical WDM networks. The method of pre-configured protection cycles (p-cycles) is very attractive for design of survivable optical networks. So far p-cycle approach has been extensively studied for design of survivable optical networks where traffic demand is static. In this paper, we first briefly describe our recently proposed p-cycle design heuristic and then show how to apply this heuristic to optical networks where traffic demand is dynamically changing. We consider three different strategies to configure dynamic p-cycles for dynamic traffic demands, and compare their performance in terms of blocking probability and computational time.

収録刊行物

• IEICE Trans. Commun., B

  IEICE Trans. Commun., B 88 1921-1925, 2005

  一般社団法人電子情報通信学会

キーワード

• protection and restoration
• p-cycles
• lightpath
• optical networks

詳細情報

• CRID: 1573387452131378944
• NII論文ID: 110003222864
• NII書誌ID: AA10826261
• ISSN: 09168516
• 本文言語コード: en
• データソース種別:
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