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dc.contributor.authorTuruk, A K-
dc.contributor.authorKumar, Rajeev-
dc.identifier.citationPhotonic Network Communications, Vol 10, No 2, P 253-266en
dc.descriptionCopyright for this article belongs to Springeren
dc.description.abstractOptical burst switching (OBS) is emerging as one promising switching paradigm for the next generation optical networks. To support multiple services in burst-switching networks, the OBS paradigm should support some quality-of-service (QoS) provisioning. A major design issue in such networks is to reduce the blocking probability of the bursts arising due to resource contention at the intermediate core router. In this paper, we propose a signaling protocol which we call ‘Delay-on-Demand’ (OBS-DoD), to reduce blocking probability and support QoS in optical burst-switching networks. The proposed scheme guarantees that at least one of the bursts succeeds depending on its priority, propagation delay from the ingress router, and the burst-size when contention occurs at the core router. For this, we use a control packet to delay, in case of a contention, the transmission of bursts at the ingress router. We compare the performance of our proposal, by simulation, with an earlier proposed scheme, and show that the proposed OBS-DoD outperforms the earlier scheme in reducing the blocking probability. For simulation, we generated bursty traffic using an M/Pareto distribution.en
dc.format.extent174416 bytes-
dc.subjectOptical Burst Switchingen
dc.titleDelay-on-Demand: A signaling protocol to reduce blocking probability in optical burst-switch networksen
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