PCE-based Combined Path Selection Scheme for Multi-layer Optical Networks

摘要：

With the increasing demand for high bandwidth, multilayer and multi-domain network is facilitated by the development of GMPLS. PCE is used to decrease the constraint-based path computation complexity. This paper introduces several existing PCE-based schemes and network model for multi-layer optical network and proposes a PCE-based combined path selection scheme in multi-layer optical networks. The new scheme is used to balance the problem between shortest path and effective resource utilization induced by the invisibility between low layer and high layer in layered optical networks. Numerical results show that proposal achieves significant improvement in blocking probability through setting proper threshold value.

关键词： PCE multi-layer GMPLS LSP

作者: Lifang Zhang Min Zhang Jiuyu Xie Jie Zhang Yuefeng Ji Peida Ye

作者单位: Key Laboratory of Information Photonics and Optical Communications,MOE,Beijing University of Posts and Telecommunications,P.O.Box 201,100876 BeiJing,China

会议类型: 国际会议

会议名称: 2011 3rd International Conference on Computer and Network Technology(ICCNT 2011)(2011第三届IEEE计算机与网络技术国际会议)

会议地点: 太原

会议语种:英文

页码: 189-192

在线出版日期: 2011-02-26（万方平台首次上网日期，不代表论文的发表时间）