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Effect of one-way mode of hybrid reservation on slotted optical burst switching networks

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2 Author(s)
Hiroyuki Noguchi ; Department of Computer Science, Chiba Institute of Technology, 2-17-1 Tsudanuma, Narashino, 275-0016 Japan ; Koji Kamakura

We introduce a hybrid of one-way and two-way reservations for slotted optical burst switching (S-OBS). Our hybrid method adds one-way mode to the two-way reservation, which has the idle time for ingress nodes to wait outcomes on preparing and scheduling at each node on the routes to egress nodes for the data segment used in S-OBS. The one-way mode enables ingress nodes to transmit data segments without waiting any outcome of the reservation of the channel resources on routes to egress nodes, though data segments are transmitted with waiting such outcomes in the two-way mode. The addition of the one-way mode reduces the idle time for ingress nodes to wait the acknowledgements of data segments in the two-way reservation method of S-OBS. We also explain the order of transmitting at the ingress node and receiving at the egress node for the correct order of the data segment. We analyze the end-to-end delay of the hybrid method, and show that the hybrid method decreases the end-to-end delay.

Published in:

Information Theory and Its Applications, 2008. ISITA 2008. International Symposium on

Date of Conference:

7-10 Dec. 2008