On Burst Rescheduling in OBS Networks With Partial Wavelength Conversion Capability

Date Added: Oct 2009
Format: PDF

The core nodes in an Optical Burst Switching (OBS) network are normally equipped with Wavelength Converters (WCs) to reduce the burst loss probability. Since WCs are expensive and still immature technologically, it is desirable to reduce the number of WCs in the network and to have partial wavelength conversion capability at the core nodes. Nevertheless, a majority of algorithms in the literature are proposed under the full wavelength conversion assumption. As a result, they do not consider the burst loss caused by insufficient WCs, i.e., bursts dropped due to the unavailability of free WCs to convert them to unused wavelengths.