Title :
Survivability of SONET/WDM ring networks with optimum number of spare components and wavelengths
Author :
Ndovsse, T.D. ; Hester, L.E. ; Kumar, S.R.
Author_Institution :
Nat. Inst. of Stand. & Technol., Gaithersburg, MD, USA
Abstract :
This paper addresses the optimization and performability of survivability strategies used in the next generation of high-capacity optical transport networks based on wavelength division multiplexing (WDM) technology. The framework of survivability presented is based on the self-healing mechanism used in SONET/SDH. The key issue addressed is how to determine the number of redundant components and wavelength units necessary to achieve a guaranteed level of survivability. A multi-modal failure probability model is developed and used in the reliability model of optical components. The multi-modal reliability analysis is used in conjunction with a reliability optimization technique to determine the optimum number of redundant components and wavelengths necessary in a SONET/WDM network to achieve a given degree of survivability
Keywords :
SONET; optical fibre networks; optimisation; telecommunication network reliability; wavelength division multiplexing; SONET/WDM ring networks; WDM; high-capacity optical transport networks; multi-modal failure probability model; next generation; optical components; optimization; performability; redundant components; reliability model; self-healing mechanism; survivability strategies; wavelength division multiplexing; wavelength units; Fault tolerance; Optical devices; Optical network units; Protection; Quality management; SONET; Synchronous digital hierarchy; Telecommunication traffic; WDM networks; Wavelength division multiplexing;
Conference_Titel :
Communications, 1999. ICC '99. 1999 IEEE International Conference on
Conference_Location :
Vancouver, BC
Print_ISBN :
0-7803-5284-X
DOI :
10.1109/ICC.1999.765616
