Heuristic of differentiated path-shared protection for dual failures in restorable optical networks

Lei Guo; Lemin Li; Hongfang YuJin Cao

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Heuristic of differentiated path-shared protection for dual failures in restorable optical networks

机译：Heuristic of differentiated path-shared protection for dual failures in restorable optical networks

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摘要

In wavelength-division-multiplexing optical networks, the fiber links may share some common physical resources (e.g., cables, conduits), and the consequence is that they have a correlated link failure probability (CLFP), which means that the probability that link / will fail depends on whether link f has failed. Based on CLFP, we propose a new heuristic survivable algorithm, called differentiated path-shared protection (DPSP), to protect against double-link failures in WDM optical networks. In DPSP, each connection request can be assigned one working path and additional backup paths according to the differentiated reliability requirements of users. Compared to previous work, DPSP can obtain better performances in resource utilization ratio and blocking probability.

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来源
《Optical Engineering》 |2007年第2期|025009-1-025009-7-0|共7页
作者
Lei Guo; Lemin Li; Hongfang YuJin Cao;
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作者单位

Northeastern University College of Information Science and Engineering Shenyang 110004, China;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种英语
中图分类光学仪器;
关键词
optical networks; differentiated reliability; correlated link failure probability (CLFP); double-link failures; path-shared protection;

Heuristic of differentiated path-shared protection for dual failures in restorable optical networks

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