An improved cost function-based class of service provisioning scheme for elastic optical networks

Batham, Deepak; Thakare, Vandana Vikas

doi:10.1016/j.comnet.2024.110283

Cited by 2 publications

(1 citation statement)

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“…In terms of the coexistence of different service classes in the network, there are also recent works investigating the theme. Dixit et al [ 20 ] and Batham et al [ 21 ] consider three distinct classes of service (CoSs) coexisting in the network: CoS1 for real-time traffic (e.g., online audio–video traffic), CoS2 for nonreal-time traffic (e.g., compressed video and transactional data traffic), and CoS3 for delay-tolerant traffic (such as store-and-forward bulk data file transfer between various data centers). Liu et al [ 22 ] investigate the coexistence of services with different levels of priorities, and they assumed that the priority levels can be arbitrarily defined by the network provider and its users via service level agreement (SLA).…”

Section: Related Workmentioning

confidence: 99%

Enhancing the Efficiency of Resilient Multipath-Routed Elastic Optical Networks: A Novel Approach for Coexisting Protected and Unprotected Services with Idle Slot Reuse

Cavalcanti,

Teixeira,

Dinarte

et al. 2024

Sensors

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In this paper, we investigate a scenario in which protected and unprotected services coexist in an elastic optical network under dynamic traffic. In the investigated scenario, unprotected services can reuse the reserved idle bandwidth to provide protection to the protected services. Under this scenario, we propose a new heuristic algorithm that enables such reuse as well as define and introduce a new assignment problem in elastic optical networks, named a Transmission Spectrum Assignment (T-SA) problem. In this paper, we consider a scenario in which services may be routed using the multipath routing approach. Additionally, protection using bandwidth squeezing is also considered. We assess our proposal through simulations on three different network topologies and compare our proposal against the classical protection approach, in which bandwidth reuse is not allowed. For the simulated range of network loads, the maximum (minimum) blocking probability reduction obtained by our proposal is approximately 48% (10%) in the European topology, 46% (7%) in the NSFNET topology, and 32% (6%) in the German topology.

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Section: Related Workmentioning

confidence: 99%