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篇目详细内容 |
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【篇名】 |
Shared-p-cycles method for design of survivable WDM networks |
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【刊名】 |
Frontiers of Electrical and Electronic Engineering in China |
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【刊名缩写】 |
Front. Electr. Electron. Eng. China |
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【ISSN】 |
1673-3460 |
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【EISSN】 |
1673-3584 |
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【DOI】 |
10.1007/s11460-009-0057-3 |
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【出版社】 |
Higher Education Press and Springer-Verlag |
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【出版年】 |
2009 |
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【卷期】 |
4
卷4期 |
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【页码】 |
362-370
页,共
9
页 |
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【作者】 |
Zhenrong ZHANG;
Lixin ZHU;
Zhengbin LI;
Anshi XU;
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【关键词】 |
wavelength division multiplexed (WDM) optical networks; integer linear program (ILP); p-cycle |
【摘要】 |
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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 important to provide fast and full protection in WDM optical networks. In this paper, we propose a new approach, called shared preconfigured protection cycles (shared-p-cycles), for the design of survivable WDM networks. We develop an integer linear program (ILP) formulation to solve the problem of shared-p-cycles design for WDM networks with and without wavelength conversion. Numerical results show that the shared-p-cycles design is more efficient in the use of spare capacity and requires much less spare capacity than the conventional p-cycles design. |
