Oct 6, 2005
Deployment of Wavelength Converters in Wavelength-Routed Overlay Networks
IEICE technical report. Information networks
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- Volume
- 105
- Number
- 323
- First page
- 13
- Last page
- 18
- Language
- Japanese
- Publishing type
- Publisher
- The Institute of Electronics, Information and Communication Engineers
Wavelength converters reduce connection blocking probability in wavelength-routed networks by eliminating the wavelength continuity constraint. We develop a method for deployment of wavelength converters in wavelength-routed overlay networks. In these networks, most wavelength converters are deployed on edge nodes to cover the difference in the numbers of wavelengths multiplexed on access and core links. Therefore reduction of wavelength converter cost on edge nodes leads to minimizing the wavelength converter cost in the whole network. We propose an ingress edge node architecture with fixed wavelength converters that are more economical than full wavelength converters. In our architecture, each input access link of ingress edge nodes is equipped with fixed wavelength converters and input wavelengths from the access links are evenly distributed on the output core link. As a result, competition for a free wavelength on an output core link is avoided. Simulation results show that our edge node architecture offers more than 46% cost reduction.
- Link information
- ID information
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- ISSN : 0913-5685
- J-Global ID : 200902242887139550
- CiNii Articles ID : 10016766710
- CiNii Books ID : AN10013072