Abstract
Optical Burst Switching (OBS) is a promising paradigm to support the next generation optical Internet since OBS increases the network utilization by reserving the channel for a limited time period. One of critical design issues in OBS is how to provide Quality-of-Service (QoS) on optical networks. In this paper, in order to provide service differentiations, we propose a buffer allocation algorithm to schedule the bursts at edge OBS nodes and a bandwidth allocation algorithm to schedule the bursts at core OBS nodes. We also introduce a new burst assembly technique in which a burst is generated either when the sum of the collected packet sizes reaches the maximum threshold or the burst assembling time reaches the timeout limit. From the simulation results, we show that the controllable burst loss probability for different service classes is achieved by the buffer and bandwidth allocation algorithms. The bandwidth allocation algorithm at the core OBS nodes performs very well in term of lower loss probability.
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Phuritatkul, J., Ji, Y. (2004). Buffer and Bandwidth Allocation Algorithms for Quality of Service Provisioning in WDM Optical Burst Switching Networks. In: Mammeri, Z., Lorenz, P. (eds) High Speed Networks and Multimedia Communications. HSNMC 2004. Lecture Notes in Computer Science, vol 3079. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-25969-5_85
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DOI: https://doi.org/10.1007/978-3-540-25969-5_85
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-22262-0
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