A hierarchical Path Computation Element (PCE)-based k-random-paths routing algorithm in multi-domain WDM networks

被引：18
|
作者：
Shang, Shengfeng [1 ]
Hua, Nan [1 ]
Wang, Lei [1 ]
Lu, Rui [1 ]
Zheng, Xiaoping [1 ]
Zhang, Hanyi [1 ]
机构：
[1] Tsinghua Univ, Dept Elect Engn, Tsinghua Natl Lab Informat Sci & Technol, State Key Lab Integrated Optoelect, Beijing 100084, Peoples R China
来源：
OPTICAL SWITCHING AND NETWORKING | 2011年 / 8卷 / 04期
基金：
中国博士后科学基金;
关键词：
Hierarchical PCE; Node pair; PCEP; k random paths; Signaling overhead; OPTICAL NETWORKS; INTERDOMAIN;
D O I：
10.1016/j.osn.2011.06.006
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
We propose an inter-domain routing algorithm for multi-domain wavelength-division multiplexing (WDM) mesh networks. On the basis of the hierarchical Path Computation Element (PCE) architecture, the proposed algorithm introduces a k random path strategy in the parent PCE to adjust the algorithm optimization level. Simulation results indicate that the proposed algorithm outperforms previous schemes in terms of blocking probability and resource utilization, while preventing the increase in PCEP signaling overhead. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码：235 / 241
页数：7
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