Abstract
A deadline-aware-scheduling scheme for the lambda grid system is proposed to support a huge computer grid
system based on an advanced photonic network technology. The assignment of wavelengths to jobs in order to
efficiently carry various services is critical in lambda grid networks. Such services have different requirements
such as the job-completion deadlines, and wavelength assignment must consider the job deadlines. The conventional
job scheduling approach assigns a lot of time slots to a call within a short period in order to finish the job as
quickly as possible. This raises the blocking probability of short deadline calls. Our proposal assigns wavelengths
in the lambda grid networks to meet quality-of-services guarantees. The proposed scheme assigns time slots to a call
over time according to its deadline, which allows it to increase the system performance in handling short deadline
calls, for example, lowering their blocking probability. Computer simulations show that the proposed scheme can
reduce the blocking probability by a factor of 100 compared with the conventional scheme under the low load
condition in which the ratio of long deadline calls is high. The proposed scheduling scheme can realize more
efficient lambda grid networks.
© 2007 IEEE
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