Advance lightpath reservation for WDM networks with dynamic traffic

Wallace, T. Daniel; Shami, Abdallah; Assi, Chadi

doi:10.1364/jon.6.000913

Cited by 7 publications

(2 citation statements)

References 9 publications

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“…Similarly, [23] addresses the same problem for the case when the connection request requires multiple wavelengths. The authors in [24,25] propose lightpath migration strategies for fixed connection set-up time and known t h connection requests in order to schedule a newly arrived request. The proposed strategies reassign network resources to the scheduled but not yet active connection requests.…”

Section: Related Workmentioning

confidence: 99%

Service Differentiated Provisioning in Dynamic WDM Networks Based on Set-Up Delay Tolerance

Muhammad

Çavdar

Wosinska

et al. 2013

J. Opt. Commun. Netw.

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Optical networks are expected to provide a unified platform for a diverse set of emerging applications (three-dimensional TV, digital cinema, e-health, grid computing, etc). The service differentiation will be an essential feature of these networks. Considering the fact that users have different levels of patience for different network applications, referred to as set-up delay tolerance, it will be one of the key parameters for service differentiation. Service differentiation based on set-up delay tolerance will not only enable network users to select an appropriate service class (SC) in compliance with their requirements, but will also provide an opportunity to optimize the network resource provisioning by exploiting this information, resulting in an improvement in the overall performance. Improvement in network performance can be further enhanced by exploiting the connection holding-time awareness. However, when multiple classes of service with different set-up delay tolerances are competing for network resources, the connection requests belonging to SCs with higher set-up delay tolerance have better chances to grab the resources and leave less room for the others, resulting in degradation in the blocking performance of less patient customers. This study proposes different scheduling strategies for promoting the requests belonging to smaller set-up delay tolerance SCs, such as giving priority, reserving some fraction of available resources, and augmenting the research space by providing some extra paths. Extensive simulation results show that 1) priority in the rescheduling queue is not always sufficient for eradicating the degradation effect of high delay tolerant SCs on the provisioning rate of the most stringent SC, and 2) by utilizing the proposed strategies, resource efficiency and overall network blocking performance improve significantly in all SCs.

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Section: Related Workmentioning

confidence: 99%

Service Differentiated Provisioning in Dynamic WDM Networks Based on Set-Up Delay Tolerance

Muhammad

Çavdar

Wosinska

et al. 2013

J. Opt. Commun. Netw.

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“…A framework for solving the scheduling problem in hybrid IP-WDM networks is proposed in [19]. There are also novel heuristics and algorithms to tackle the scheduling problem with the optimization goal of minimizing the required resources or reducing the blocking rate or both [20,21]. For a comprehensive survey and more papers on the scheduling problem in wavelength-routed WDM networks, please refer to [22].…”

Section: Related Work and Motivationmentioning

confidence: 99%

Cost-Optimized Reservation and Routing for Scheduled Traffic in Optical Networks

Ding¹,

Peng

Ramamurthy

2013

J. Opt. Commun. Netw.

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Connection requests for data-intensive applications can require a specific start time and end time/ duration when they are submitted. With the additional time domain information, cost-efficient connections can be established. In this paper, we propose two capital expenditure (CapEx) optimized approaches: the multilayer (ML) approach and a transponder/regenerator reuse (TRR) approach. Integer linear programming (ILP) is used to formulate the routing, wavelength assignment, and regenerator/multiplexer placement problem in a complex multilayer optical network to provide lower bounds for the optimized CapEx value. Due to the time and space complexity of ILP when it deals with large networks and traffic demands, we also propose a greedy heuristic and a tabusearch (TS) heuristic to solve the same problem in a less time-and resource-consuming manner. Finally, we compare the results in terms of computing time and optimized CapEx value across the ILP, greedy heuristic, and TS heuristic methods with the ML approaches for the Internet2 topology and a six-node ring topology. The performance of all three methods with the TRR approach is also tested with the same input traffic, which is composed of a mix of 10, 40, and 100 Gbps demands. The results show 30%-40% less CapEx when comparing ML with TRR. Further, our TS heuristic performs better than the greedy heuristic, and it can achieve near-optimal results compared to the ILPs.

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Connection management algorithm for advance lightpath reservation in WDM networks

Wallace

Shami

2007

2007 Fourth International Conference on Broadband Communications, Networks and Systems (BROADNETS '07)

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Advance lightpath reservation for WDM networks with dynamic traffic

Cited by 7 publications

References 9 publications

Service Differentiated Provisioning in Dynamic WDM Networks Based on Set-Up Delay Tolerance

Service Differentiated Provisioning in Dynamic WDM Networks Based on Set-Up Delay Tolerance

Cost-Optimized Reservation and Routing for Scheduled Traffic in Optical Networks

Connection management algorithm for advance lightpath reservation in WDM networks

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