Protection Path-Based Hitless Spectrum Defragmentation for Elastic Optical Networks: 1+1 Path Protection

• DOI: 10.1364/acpc.2014.af3e.3
• Publication Date: 2014-12-02T18:52:24Z
• Authors: Chao Wang; Gangxiang Shen; Limei Peng
• Keywords: 0202 electrical engineering, electronic engineering, information engineering; 02 engineering and technology

We propose a protection path-based spectrum defragmentation approach to improve the spectrum utilization of an elastic optical network under the 1+1 path protection technique. Results show that the proposed approach can significantly improve spectral efficiency compared to the case without defragmentation.