Title :
Upgrading SONET rings with WDM instead of TDM: an economic analysis
Author :
Gerstel, O. ; Ramaswami, R.
Author_Institution :
Tellabs, Hawthorne, NY, USA
Abstract :
We compare a time-division multiplexed (TDM) upgrade of a legacy SONET ring to a single higher speed ring, versus a wavelength-division multiplexed (WDM) upgrade path, in which it is possible to retain the legacy ring and add additional "virtual rings" at different wavelengths and lower speeds. The paper makes the case that the WDM option can be economically compelling.
Keywords :
SONET; costing; digital communication; economics; optical fibre networks; wavelength division multiplexing; SONET ring upgrading; TDM upgrade; WDM upgrade; cost analysis; economic analysis; legacy SONET ring; virtual rings; wavelength-division multiplexing; Add-drop multiplexers; Costs; Optical add-drop multiplexers; Optical network units; Optical receivers; Ring lasers; SONET; Time division multiplexing; Wavelength division multiplexing;
Conference_Titel :
Optical Fiber Communication Conference, 1999, and the International Conference on Integrated Optics and Optical Fiber Communication. OFC/IOOC '99. Technical Digest
Conference_Location :
San Diego, CA, USA
Print_ISBN :
1-55752-582-X
DOI :
10.1109/OFC.1999.768068
