DocumentCode :
3448262
Title :
A novel passive protected SONET bi-directional self-healing ring architecture
Author :
Wu, Tsong-Ho ; Way, Winston
Author_Institution :
Bellcore, Red Bank, NJ, USA
fYear :
1991
fDate :
4-7 Nov 1991
Firstpage :
894
Abstract :
The authors present a cost-effective implementation for a four-fiber bidirectional self-healing ring architecture (BSHR/4) which uses a totally passive ring as the protection ring of the BSHR/4. The proposed passive protected SONET BSHR/4 uses a SONET ring to carry working traffic, and a passive ring to carry protection traffic in case of network component failures. The passive protection ring, which is composed of optical switches and optical amplifiers, is essentially an optical add-drop protection ring, where optical switches of two ends of the failed facility act as optical add-drop components and optical switches of intermediate ring nodes are used as optical pass-through components. The optical sign add-drop is controlled by SONET add-drop multiplexers. A SONET control scheme for this implementation is discussed. The proposed BSHR/4 is attractive not only because it has a significant cost advantage over conventional BSHR/4 implementations, but also because it can easily evolve from any two-fiber ring, including the two-fiber bidirectional ring, with a minimum capital investment but gaining twice the capacity of the two-fiber ring
Keywords :
multiplexing equipment; optical communication equipment; optical links; synchronisation; BSHR/4; SONET; add-drop multiplexers; bidirectional self healing ring; network architecture; network component failures; optical add-drop components; optical add-drop protection ring; optical amplifiers; optical pass-through components; optical switches; passive network; passive protection ring; protection traffic; working traffic; Bidirectional control; Optical amplifiers; Optical control; Optical devices; Optical switches; Protection; SONET; Semiconductor optical amplifiers; Stimulated emission; Telecommunication traffic;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Military Communications Conference, 1991. MILCOM '91, Conference Record, Military Communications in a Changing World., IEEE
Conference_Location :
McLean, VA
Print_ISBN :
0-87942-691-8
Type :
conf
DOI :
10.1109/MILCOM.1991.258395
Filename :
258395
Link To Document :
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