A Decentralized Optical Bursts Routing Based on Adaptive Load Splitting into Pre-Calculated Multiple Paths

Ogino, Nagao

doi:10.1093/ietcom/e88-b.12.4507

Cited by 10 publications

(5 citation statements)

References 18 publications

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“…Most of the proposals are based on a static calculation of the set of equally important routes with Dijkstra's algorithm [17]. Then, the path selection proceeds adaptively according to some heuristic [3,18] or optimised cost function [19,20]. Both traffic splitting [21,22] and path ranking [23 -25] techniques are used in the path selection process.…”

Section: Review Of Routing Methods In Obs Networkmentioning

confidence: 99%

Reactive and proactive routing in labelled optical burst switching networks

2009

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Optical burst switching architectures without buffering capabilities are sensitive to burst congestion. The existence of a few highly congested links may seriously aggravate the network throughput. Proper network routing may help in congestion reduction. The authors focus on adaptive routing strategies to be applied in labelled OBS networks, that is, with explicit routing paths. In particular, two isolated alternative routing algorithms that aim at network performance improvement because of reactive route selection are studied. Moreover, a nonlinear optimisation method for multi-path source-based routing, which aims at proactive congestion reduction is proposed. Comparative performance results are provided and some implementation issues are discussed.

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Section: Review Of Routing Methods In Obs Networkmentioning

confidence: 99%

Reactive and proactive routing in labelled optical burst switching networks

2009

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“…The results that we will present in next section are obtained by setting w 1 = 0.25, w 2 = 0. 75. More details of this adaptive burstification algorithm is presented in [5].…”

Section: Adaptive Burstification Algorithmmentioning

confidence: 99%

“…Most of the proposals are based on a static calculation of the set of equally-important routes (e.g., [81]). Then the path selection is performed adaptively and according to some heuristic [75,95] or optimised cost function [66,94]. Both traffic splitting [4,63] and path ranking [46,104] techniques are used in the path selection process.…”

Section: Introduction and State-of-the-artmentioning

confidence: 99%

Performance Issues in Optical Burst/Packet Switching

Careglio

Aracil

Azodolmolky

et al. 2009

Towards Digital Optical Networks

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Esta es la versión de autor de la comunicación de congreso publicada en: This is an author produced version of a paper published in: Abstract. This chapter summarises the activities on optical packet switching (OPS) and optical burst switching (OBS) carried out by the COST 291 partners in the last 4 years. It consists of an introduction, five sections with contributions on five different specific topics, and a final section dedicated to the conclusions. Each section contains an introductive state-of-the-art description of the specific topic and at least one contribution on that topic. The conclusions give some points on the current situation of the OPS/OBS paradigms.

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“…In the two adaptive path selection mechanisms proposed in [20] and [28], the average transfer delay always exceeds that of the shortest-path routing because alternative paths with a larger transfer delay are also utilized in the multi-path routing. The paper [15] proposed a decentralized routing scheme based on multiple paths in which each source node splits the traffic load according to the measured loss rate instead of link utilization. Moreover, load splitting ratios for the multiple paths are autonomously adjusted to minimize the average transfer delay based on the condition that the required loss rate of optical bursts is satisfied.…”

Section: Previous Workmentioning

confidence: 99%

“…The routing method proposed also bears fairness-solving in mind, which distinguishes itself from the other adaptive routing mechanisms [15,20,28]. To achieve better fairness, it allows longer-hop bursts to have more routing choices.…”

Section: Hop-by-hop Proactive Routing Using Fcr and Neighborhood Linkmentioning

confidence: 99%

Addressing conversion cascading constraint in OBS networks through proactive routing

Gao

Bassiouni

2008

Photon Netw Commun

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The negative impact of cascaded wavelength conversions has been largely ignored in optical burst switching performance evaluations. When optical bursts are transmitted all optically from source to destination, each wavelength conversion performed along the lightpath may cause some signal-to-noise deterioration. If the distortion of the signal quality becomes significant enough, the receiver would not be able to recover the original data. In this paper we examine the performance degradation when an upper bound on the number of wavelength conversions that a signal can go through is enforced. We refer to this constraint as conversion cascading constraint. We propose a novel proactive routing scheme under this constraint that considers the instantaneous link congestion at the moment when the bursts arrive. It has three major advantages: (1) utilize the same offset times for the same node pairs while providing dynamic routing without using any fiber delay lines (FDL); (2) decrease burst loss probability to a great extent; (3) mitigate unfairness among the bursts with different hop counts, which is even worse under the conversion cascading constraint if without any special treatment. We also extend the proposed mechanism to embrace a variant of regulated deflection routing which can further improve network performance.

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A Decentralized Optical Bursts Routing Based on Adaptive Load Splitting into Pre-Calculated Multiple Paths

Cited by 10 publications

References 18 publications

Reactive and proactive routing in labelled optical burst switching networks

Reactive and proactive routing in labelled optical burst switching networks

Performance Issues in Optical Burst/Packet Switching

Addressing conversion cascading constraint in OBS networks through proactive routing

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