Service Differentiation Scheme Using Two Horizons for Horizon Based OBS Networks

Takashi KODAMA; Koji KAMAKURA; Ken'ichiro YASHIRO

doi:10.1093/ietcom/e90-b.6.1374

Service Differentiation Scheme Using Two Horizons for Horizon Based OBS Networks

Takashi KODAMA, Koji KAMAKURA, Ken'ichiro YASHIRO

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We propose a service differentiation scheme for optical burst switching (OBS) with the scheduling algorithm Horizon. In the proposed scheme, in addition to the latest horizon used in the conventional Horizon, we introduce the second latest horizon and use them for reservation preemption. Burst priority order is perfectly guaranteed according to the burst class information informed by its control packet if the arrival time of the burst is later than the second latest horizon and earlier than the latest horizon. Since the extra offset time is no longer needed for service differentiation, the burst blocking probability and the data latency will be reduced. We assume a multi-hop network with ring topology where bursts traverse five intermediate nodes, and evaluate the performance in terms of the end-to-end and hop-by-hop burst blocking probabilities. Simulation results show that the proposed scheme can achieve service differentiation with smaller blocking probability than the extra-offset-time-based scheme with Horizon. Furthermore, we show that the proposed scheme preserves service differentiation even in multi-hop environments.

Publication: IEICE TRANSACTIONS on Communications Vol.E90-B No.6 pp.1374-1380

Publication Date: 2007/06/01

Publicized

Online ISSN: 1745-1345

DOI: 10.1093/ietcom/e90-b.6.1374

Type of Manuscript: PAPER

Category: Fiber-Optic Transmission for Communications

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Takashi KODAMA, Koji KAMAKURA, Ken'ichiro YASHIRO, "Service Differentiation Scheme Using Two Horizons for Horizon Based OBS Networks" in IEICE TRANSACTIONS on Communications, vol. E90-B, no. 6, pp. 1374-1380, June 2007, doi: 10.1093/ietcom/e90-b.6.1374.
Abstract: We propose a service differentiation scheme for optical burst switching (OBS) with the scheduling algorithm Horizon. In the proposed scheme, in addition to the latest horizon used in the conventional Horizon, we introduce the second latest horizon and use them for reservation preemption. Burst priority order is perfectly guaranteed according to the burst class information informed by its control packet if the arrival time of the burst is later than the second latest horizon and earlier than the latest horizon. Since the extra offset time is no longer needed for service differentiation, the burst blocking probability and the data latency will be reduced. We assume a multi-hop network with ring topology where bursts traverse five intermediate nodes, and evaluate the performance in terms of the end-to-end and hop-by-hop burst blocking probabilities. Simulation results show that the proposed scheme can achieve service differentiation with smaller blocking probability than the extra-offset-time-based scheme with Horizon. Furthermore, we show that the proposed scheme preserves service differentiation even in multi-hop environments.
URL: https://globals.ieice.org/en_transactions/communications/10.1093/ietcom/e90-b.6.1374/_p

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@ARTICLE{e90-b_6_1374,
author={Takashi KODAMA, Koji KAMAKURA, Ken'ichiro YASHIRO, },
journal={IEICE TRANSACTIONS on Communications},
title={Service Differentiation Scheme Using Two Horizons for Horizon Based OBS Networks},
year={2007},
volume={E90-B},
number={6},
pages={1374-1380},
abstract={We propose a service differentiation scheme for optical burst switching (OBS) with the scheduling algorithm Horizon. In the proposed scheme, in addition to the latest horizon used in the conventional Horizon, we introduce the second latest horizon and use them for reservation preemption. Burst priority order is perfectly guaranteed according to the burst class information informed by its control packet if the arrival time of the burst is later than the second latest horizon and earlier than the latest horizon. Since the extra offset time is no longer needed for service differentiation, the burst blocking probability and the data latency will be reduced. We assume a multi-hop network with ring topology where bursts traverse five intermediate nodes, and evaluate the performance in terms of the end-to-end and hop-by-hop burst blocking probabilities. Simulation results show that the proposed scheme can achieve service differentiation with smaller blocking probability than the extra-offset-time-based scheme with Horizon. Furthermore, we show that the proposed scheme preserves service differentiation even in multi-hop environments.},
keywords={},
doi={10.1093/ietcom/e90-b.6.1374},
ISSN={1745-1345},
month={June},}

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TY - JOUR
TI - Service Differentiation Scheme Using Two Horizons for Horizon Based OBS Networks
T2 - IEICE TRANSACTIONS on Communications
SP - 1374
EP - 1380
AU - Takashi KODAMA
AU - Koji KAMAKURA
AU - Ken'ichiro YASHIRO
PY - 2007
DO - 10.1093/ietcom/e90-b.6.1374
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E90-B
IS - 6
JA - IEICE TRANSACTIONS on Communications
Y1 - June 2007
AB - We propose a service differentiation scheme for optical burst switching (OBS) with the scheduling algorithm Horizon. In the proposed scheme, in addition to the latest horizon used in the conventional Horizon, we introduce the second latest horizon and use them for reservation preemption. Burst priority order is perfectly guaranteed according to the burst class information informed by its control packet if the arrival time of the burst is later than the second latest horizon and earlier than the latest horizon. Since the extra offset time is no longer needed for service differentiation, the burst blocking probability and the data latency will be reduced. We assume a multi-hop network with ring topology where bursts traverse five intermediate nodes, and evaluate the performance in terms of the end-to-end and hop-by-hop burst blocking probabilities. Simulation results show that the proposed scheme can achieve service differentiation with smaller blocking probability than the extra-offset-time-based scheme with Horizon. Furthermore, we show that the proposed scheme preserves service differentiation even in multi-hop environments.
ER -