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

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5 Author(s)
Shengfeng Shang ; State Key Laboratory on Integrated Optoelectronics, Tsinghua National Laboratory for Information Science and Technology, Department of Electronic Engineering, Tsinghua University, Beijing, 100084, China ; Xiaoping Zheng ; Heng Zhang ; Nan Hua
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This paper proposes an inter-domain routing algorithm for multi-domain WDM networks based on hierarchical PCE architecture. The proposed algorithm presents a strategy of selecting k random paths in parent PCE. The simulation indicates that the proposed algorithm outperforms previous methods in term of blocking probability and resource utilization.

Published in:

Asia Communications and Photonics Conference and Exhibition

Date of Conference:

8-12 Dec. 2010