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Extensible optical access network enabling multistage protections and data aggregation based on tangent rings
Author(s) -
Shao Qi,
Gan Chaoqin,
Wang Ruixue
Publication year - 2014
Publication title -
international journal of communication systems
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.344
H-Index - 49
eISSN - 1099-1131
pISSN - 1074-5351
DOI - 10.1002/dac.2504
Subject(s) - computer science , tangent , architecture , extensibility , line (geometry) , network architecture , optical fiber , computer network , wavelength , topology (electrical circuits) , computer hardware , telecommunications , optoelectronics , electrical engineering , materials science , mathematics , engineering , art , geometry , visual arts , operating system
In this paper, an extensible optical access network architecture is proposed on the basis of multiple tangent single‐fiber rings. With the proposed architecture, both multistage protections and data aggregation can be realized. Optical line terminal and remote nodes (RNs) can automatically switch to protection mode to overcome fiber failure occurring in both main ring (MR) and sub‐rings (SRs). The RNs, which are designed as tangent points, can realize wavelengths adding and dropping between MR and SRs, and they also can realize the network expansion conveniently and smoothly through adding more wavelengths. So, it is a good selection for next‐generation large‐scale access networks. Copyright © 2013 John Wiley & Sons, Ltd.