A Multi-Backup Path Protection scheme for survivability in Elastic Optical Networks

Yadav, Dharmendra Singh; Chakraborty, Abhishek; Manoj, B. S.

doi:10.1016/j.yofte.2016.05.003

Cited by 33 publications

(16 citation statements)

References 17 publications

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“…Three well-known network topologies such as USA topology [5] with 24 nodes and 43 links, Cost239 network topology [32] with 11 nodes and 26 links and NSFNET network topology [5] with 14 nodes and 22 links are used for simulation in this work where the distance between each node pair is measured in km (shown in Fig. 5).…”

Section: Simulation Results and Comparative Studymentioning

confidence: 99%

On Energy Efficient Survivable Multipath Based Approaches in Space Division Multiplexing Elastic Optical Network: Crosstalk-Aware and Fragmentation-Aware

Paira

Halder

Chatterjee³

et al. 2020

IEEE Access

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In this paper, we have proposed two energy-efficient heuristics: (i) CMDE-RSCA (crosstalk-aware), and (ii) FMDE-RSCA (fragmentation-aware) to address the issues of inter-core crosstalk, and fragmentation within the core respectively-to ensure quality transmission of the optical signal for dynamic traffic in space division multiplexing elastic optical network (SDM-EON), while maintaining survivability of the network against single link failure. These heuristics based on multipath based survivability are compared with three existing survivable approaches based on p-cycles and shared path in terms of bandwidth blocking, energy consumption, crosstalk, and fragmentation. Both these algorithms outperform all three existing heuristics in terms of all parameters. In between CMDE-RSCA and FMDE-RSCA, CMDE-RSCA leads to consume lesser energy, whereas FMDE-RSCA produces lesser bandwidth blocking.

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Section: Simulation Results and Comparative Studymentioning

confidence: 99%

On Energy Efficient Survivable Multipath Based Approaches in Space Division Multiplexing Elastic Optical Network: Crosstalk-Aware and Fragmentation-Aware

Paira

Halder

Chatterjee³

et al. 2020

IEEE Access

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“…Other problems related to survivability in optical networks are tackled in [11,12]. The authors in [11] propose the use of multiple backup routes to improve the connection acceptance rate and the backup resource sharing. A comparison between their approach and conventional path protection strategies is provided.…”

Section: Related Workmentioning

confidence: 99%

Minimization of the network availability upgrade cost with geodiverse routing for disaster resilience

Sousa

Gomes

Girão‐Silva

et al. 2019

Optical Switching and Networking

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Telecommunication networks are a critical infrastructure of our society. Wide area backbone communication networks are based on optical networks, where each fiber has a very large capacity. These networks must offer high end-to-end availability and a high resilience to large-scale disasters. Routing with geodiversity can mitigate the impact of disasters but will result in longer paths, making it difficult to achieve the availability levels required by critical services. In this paper, we consider a given core optical network such that the current availability and the cost of upgrading it to a higher value are known for each network link (or edge). Then, the problem of selecting a set of edges to be upgraded at a minimum cost, while guaranteeing desired values of end-toend availability and geodiversity, is considered and formulated as an arc based integer non-linear programming model. The non-linear constraints of the model are approximated and linearized, resulting in a new ILP based heuristic. A filtering procedure is proposed for decreasing (if possible) the cost and the number of upgraded edges of the solutions obtained by previously proposed greedy heuristics and also by the ILP based heuristic. The relative performance of the heuristics is evaluated using different geodiverse distances and end-to-end availability values in two reference core optical networks.

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“…This has been possible due to the development of next generation transponder, namely, bandwidth variable transponder (BVT). Because of BVT, the availability of spectrum bandwidth becomes finer, and it can be varied as per the need of user demands 9 . In EON, the minimum bandwidth slice/slot capacity assigned to a connection request is 12.5 GHz based on the international telecommunications union (ITU) standard, so called frequency slice/slot (FS) 10 .…”

Section: Introductionmentioning

confidence: 99%

Cost function‐based class of service provisioning strategy in elastic optical networks

Dixit

Batham

Narwaria

2020

Int J Communication

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SummaryThe recent fog‐and‐cloud computing, Internet of things (IoT), artificial intelligence, machine learning, and store‐and‐forward datacenter applications gradually increase the Internet traffic. The arrival of this traffic is periodic, which remains high during certain time duration (known as peak or working/office hour) each day, resulting in an increase in the resource bottleneck problem, which causes high connections blocking. Due to these, many commercial and business data services may lose their connections which contain the urgent and important information. In order to handle such a critical situation in elastic optical networks (EONs), prioritization of connection requests based on the differentiated class of service (CoS) is a must. In this paper, the network traffic is categorized into three CoS requests. These are CoS1 (real‐time traffic), CoS2 (nonreal‐time traffic), and CoS3 (delay‐tolerant traffic) and proposed a cost function‐based CoS provisioning (CFCoSP) strategy in which the connection requests are served as per an increasing value of cost function. The cost function is a cumulative function of CoS, pathlength, and requested bandwidth demand (i.e., number of frequency slots required). The simulations are performed on INDIAN and ARPANET network topologies under uniform CoS ratio (i.e., CoS1:CoS2:CoS3 = 1:1:1) on the metrics of connection established, bandwidth blocking probability, resource utilization ratio, and network capacity utilization. The simulation results verify that the proposed CFCoSP strategy shows significantly improved performances as compared to an existing non‐cost CoS provisioning (CoSP) strategy on the investigated metrics.

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A Multi-Backup Path Protection scheme for survivability in Elastic Optical Networks

Cited by 33 publications

References 17 publications

On Energy Efficient Survivable Multipath Based Approaches in Space Division Multiplexing Elastic Optical Network: Crosstalk-Aware and Fragmentation-Aware

On Energy Efficient Survivable Multipath Based Approaches in Space Division Multiplexing Elastic Optical Network: Crosstalk-Aware and Fragmentation-Aware

Minimization of the network availability upgrade cost with geodiverse routing for disaster resilience

Cost function‐based class of service provisioning strategy in elastic optical networks

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