Hybrid deflection and retransmission routing schemes for OBS networks

NGO, S.-H.; Jian, Xiaohong; Horiguchi, Susumu

doi:10.1109/hpsr.2006.1709739

Cited by 13 publications

(11 citation statements)

References 9 publications

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“…This assumption has been used extensively in the technical literature dealing with performance evaluation of OBS networks, e.g. [9,10,[12][13][14]20]. The inherent simplicity given by this assumption makes us focus on evaluating how the different network and node parameters affect the network performance.…”

Section: Traffic Modelmentioning

confidence: 99%

“…As a matter of fact, the technical literature does not provide yet an analogous understanding of the effect of optical buffering in OBS networks. On the routing issue, deflection routing applied to OBS has been already reported in [8][9][10][11][12][13][14], albeit without, or just partially, outlining the combined effect with node buffering. Several contention resolution schemes, including buffering and deflection, have been compared for traffic performance [15]; however, they refer to an OPS scenario quite different from an OBS one.…”

Section: Introductionmentioning

confidence: 99%

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Buffering-deflection tradeoffs in optical burst switching

2010

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A very important issue in optical burst switching (OBS) networks is the excessive burst drop when no suitable network resources are found during path reservation. In this study, a network scenario is evaluated in which AWG-based optical nodes are used as burst router nodes within the optical network. The two classical solutions to solve the burst contentions on the channels outgoing from the node are considered, that is, either based on buffering within the node, or by exploiting deflection routing. A performance evaluation is carried out to evaluate and compare these solutions for different network topologies with different node and traffic parameters. Our main contribution is to set numerical tradeoffs between burst deflection through the network and buffering in the node, so that a guidance in optical network design is provided where node buffering is inherently technologically limited.

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Section: Traffic Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Buffering-deflection tradeoffs in optical burst switching

2010

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“…al. [4]. They have proposed a Hybrid Deflection and Retransmission (HDR) algorithm [4] which combines deflection routing and retransmission.…”

Section: Introductionmentioning

confidence: 99%

“…[4]. They have proposed a Hybrid Deflection and Retransmission (HDR) algorithm [4] which combines deflection routing and retransmission. Simulation results have shown that HDR gives bad overall performance because it systematically try deflection first.…”

Section: Introductionmentioning

confidence: 99%

Adaptive Hybrid Deflection and Retransmission Routing for Optical Burst-Switched Networks

Lévesque

Elbiaze

Aly

2008

2008 IEEE PhotonicsGlobal@Singapore

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Burst contention is a well known challenging problem in Optical Burst Switching (OBS) networks. Deflection routing is used to resolve contention. Burst retransmission is used to reduce the Burst Loss Ratio (BLR) by retransmitting dropped bursts. Previous works show that combining deflection and retransmission outperforms both pure deflection and pure retransmission approaches. This paper proposes a new Adaptive Hybrid Deflection and Retransmission (AHDR) approach that dynamically combines deflection and retransmission approaches based on network conditions such as BLR and link utilization. Network Simulator 2 (ns-2) is used to simulate the proposed approach on different network topologies. Simulation results show that the proposed approach outperforms static approaches in terms of BLR and goodput.

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“…Considering the individual schemes, deflection routing marginally outperforms the limited wavelength conversion [14]. The deflection routing can also be combined with retransmission scheme in such a way that the combined scheme always results in lesser end-to-end delay and burst loss ratio compared to PDR (Pure deflection routing) and PBR (Pure blocking and retransmission) [15]. The HDR (Hybrid deflection and retransmission) scheme transmits the data bursts first using deflection routing and if the deflection routing fails, applies burst retransmission.…”

Section: Hybrid Deflection Schemesmentioning

confidence: 99%

Deflection Routing in OBS Networks

Thachayani¹,

Nakkeeran²

2013

IJCATR

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Optical Burst Switching (OBS) network proposed as future optical internet is capable of carrying bursty traffic and adapting to the present technological constraints. Since the OBS network is buffer-less in nature, contention resolution using deflection technique received much attention. Deflection routing can work with limited optical buffering or even no buffering. This paper gives an overview of the research done so far in this area of deflection routing in OBS networks.

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Hybrid deflection and retransmission routing schemes for OBS networks

Cited by 13 publications

References 9 publications

Buffering-deflection tradeoffs in optical burst switching

Buffering-deflection tradeoffs in optical burst switching

Adaptive Hybrid Deflection and Retransmission Routing for Optical Burst-Switched Networks

Deflection Routing in OBS Networks

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