NDLI: A Dynamic Cost Optimized Provisioning Algorithm- (DCOPA) for Optical Networks with less rejection ratio

Content Provider	IEEE Xplore Digital Library
Author	Deepalakshmi, R. Rajaram, S.
Copyright Year	2010
Description	Author affiliation: Department of Computer Science and Engineering, Velammal College of Engineering and Technology, Madurai, India (Deepalakshmi, R.) \|\| Department of Electronics and Communication Engineering, Thiagarajar College of Engineering, Madurai, India (Rajaram, S.)
Abstract	Multimedia applications present new challenges to the current networking technology. One of them is Quality of Service (QoS) requirement. Due to the increasing dynamics of traffic introduced by multimedia applications, dynamic and flexible QoS (Quality of Service) control is needed to ensure both QoS satisfaction and resource efficiency. Because integrated service networks are designed to support a wide range of traffic classes, which have different service requirements, developing metrics to evaluate them is complex. Optical networks provides Quality of Service (QoS), guarantees are also resilient to failures. Supporting QoS connections requires the existence of routing mechanisms that computes the QoS paths, where these paths satisfy the QoS constraints. Resilience to failures, on the other hand, is achieved by providing, each primary QoS path, a set of alternative QoS paths, upon a failure of either a link or a node. We aim at to minimize the total bandwidth reserved on the backup edges. The above objectives, coupled with the need to minimize the global use of network resources, imply that the cost of both the primary path and the restoration topology should be a major consideration of the routing process. It turns out that the widely used approach of disjoint primary, restoration paths is not an optimal strategy. Hence, the proposed approximation provisioning algorithms (DCOPA) construct a topology, and this topology protects a portion of the primary QoS path. This approach guarantees to find a topology with optimal cost which satisfies the QoS constraints.
Starting Page	11
Ending Page	16
File Size	303518
Page Count	6
File Format	PDF
ISBN	9788183713696
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-12-27
Publisher Place	India
Access Restriction	Subscribed
Rights Holder	Kongu Engineering College
Subject Keyword	Algorithm design and analysis Optical network Heuristic algorithms Quality of service QoS Constraints Restoration Schemes Shortest path Optical network units Provisioning Schemes Bandwidth QoS Models Primary path and Restoration Topology
Content Type	Text
Resource Type	Article

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