QoS-aware protection in elastic optical networks with distance-adaptive and reconfigurable modulation formats

Hai, Dao Thanh; Hoang, Trong-Minh; Chau, Le Hai

doi:10.1016/j.yofte.2020.102364

Cited by 20 publications

(6 citation statements)

References 29 publications

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“…A number of researchers have reported the use of squeezing as a solution to meet customer and service providers needs. For example, see [38]- [40] for details and a theoretical demonstration in [20]. As a repercussion, cheaper transponders with less power consumption can be applied, and less spectrum resources (i.e., narrower channels) are necessary.…”

Section: A Small Networkmentioning

confidence: 99%

Channel-Based RSA Approaches for QoS Protection of Slices Over Elastic Optical Networks

et al. 2022

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Resource efficiency and survivability are critical concerns in elastic optical networks (EONs) with virtualization. In this paper, we investigate some important aspects in network survivability design against single-link failure under dedicated protection and bandwidth squeezing schemes when multiple virtual topologies are employed. We propose a link-path integer linear programming (ILP) formulation to solve the joint virtualization and survivability problem in elastic optical networks for large network instances, and derive some different types of protection for each virtual topology considering a channelbased spectrum approach to solve the spectrum allocation. Besides, we propose a heuristic to find a pair of predefined paths to ILP formulation aiming to minimize the link load. The proposed ILP and heuristic provide effective survivability solutions and spectrum resource savings for a cooperative design of modern survivable virtualized EONs taking advantages of a link-path model.

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Section: A Small Networkmentioning

confidence: 99%

Channel-Based RSA Approaches for QoS Protection of Slices Over Elastic Optical Networks

et al. 2022

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“…Some similar approaches have been studied. At the optical layer, for example, there are studies to differentiate path protection grades by considering traffic characteristics [15,16]. Also, at the IP layer, traffic engineering methods have been proposed to follow dynamically changing QoS parameters [11].…”

Section: Related Workmentioning

confidence: 99%

“…In contrast, best-effort traffic is regarded as commoner traffic, and its route may be changed by optimization. In similar approaches, focusing on the existence of premium and best-effort traffic, Hai et al proposed a method to differentiate the degree of protection in elastic optical networks [15,16]. Their work is very important for ensuring reliability at lower optical layer.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Traffic Engineering Considering Service Grade in Integrated Service Network

Kamamura

2022

IEEE Access

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This study proposes a dynamic traffic engineering method to improve network resource utilization efficiency without affecting important services in an integrated service network where multiple grades of service are accommodated. Network resource utilization is biased over time because future fluctuations in traffic demand are unpredictable. Although a service network provider prefers to re-optimize network resource utilization using a dynamic traffic engineering, it is often superfluous for users who do not want their mission-critical communications, for example, executive web meetings or online surgery, to be affected. Therefore, we classified traffic into very important packets and commoners, and only commoners were dynamically optimized. To classify traffic, we assigned the identifier to a packet on the application side. In this approach, only the application and edge nodes of the network required modification; the core network routers were unaffected. Furthermore, we established the architecture of the edge node using a software-defined network controller and P4 switch. We also provided an algorithm for optimization based on linear programming and demonstrated that it is possible to improve network resource utilization efficiency without affecting very important packets and that the computational and memory costs are practical.

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“…Furthermore, various studies carried out towards securing sensors in WSN where the discussion has been carried out towards the need for further improvement in the data aggregation process [14]- [19]. Apart from this, various optimization approaches [20]- [22], as well as studies towards quality of services [23], [24], have also been presented toward improving data transmission in WSN. The existing system [25] reports incorporating the intelligence in the mobile agents in WSN to enhance its performance towards autonomy, executability, and mobility.…”

Section: Introductionmentioning

confidence: 99%

Energy-efficient data-aggregation for optimizing quality of service using mobile agents in wireless sensor network

Basappa¹,

Shobha²,

Thanuja

2022

IJECE

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<p>Quality of service (QoS) is essential for carrying out data transmission using resource-constrained sensor nodes in wireless sensor network (WSN). The introduction of mobile agent-based data aggregation is reported to offer energy efficiency; however, it has limitations, especially using a single mobile agent, where QoS optimization is not feasible. A review of existing studies showcases some dedicated attempts to use a mobile agent-based approach and address QoS enhancements. However, they were never combined studied. Therefore, this paper introduces a unique concept of retaining maximum QoS performance during data aggregation using a single mobile agent. The model introduces a unique communication framework, transmission provisioning using exceptional routine management, and simplified energy modeling. The proposed model has aimed for a lower delay and faster data aggregation speed with lower consumption of transmittance energy. The implementation and assessment of the model are carried out considering the challenging environment of WSN with multiple scales of data priority. The proposed model also contributes to evolving out with simplified communication vectors in a highly decentralized method. MATLAB's simulation outcome shows that the proposed system offers better delay performance, optimal energy management, and faster response time than existing schemes.</p>

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QoS-aware protection in elastic optical networks with distance-adaptive and reconfigurable modulation formats

Cited by 20 publications

References 29 publications

Channel-Based RSA Approaches for QoS Protection of Slices Over Elastic Optical Networks

Channel-Based RSA Approaches for QoS Protection of Slices Over Elastic Optical Networks

Dynamic Traffic Engineering Considering Service Grade in Integrated Service Network

Energy-efficient data-aggregation for optimizing quality of service using mobile agents in wireless sensor network

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