Energy-Aware Algorithms for IP Over WDM Optical Networks

Beletsioti, Georgia A.; Papadimitriou, Georgios I.; Nicopolitidis, Petros

doi:10.1109/jlt.2016.2548078

Cited by 24 publications

(10 citation statements)

References 19 publications

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“…For optical network, authors in [21]- [23] have analyzed different energy consumption models of network devices and classified the different energy-aware approaches (i.e., energyefficient network design and green routing). Bypass and traffic grooming techniques are used for energy saving in [24] [25]. Delay performance has been considered and improved in [25] and a reconfiguration algorithm has been proposed to calculate individual dynamic high thresholds by using the output of load prediction module in [26].…”

Section: A Energy Efficiencymentioning

confidence: 99%

Location-Aware Energy Efficient Virtual Network Embedding in Software-Defined Optical Data Center Networks

Zong¹,

Hammad

et al. 2018

J. Opt. Commun. Netw.

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To overcome the Internet ossification, network virtualization has been proposed as a promising method because of its advantages (e.g., on demand and efficient resource allocation). Virtual network embedding (VNE) is one of the main challenges for network virtualization. Energy costs of servers in data centers (DCs) are major contribution to power consumption in information and communication technology (ICT). Therefore, VNE should consider both acceptance ratio and power consumption. In this paper, a mixed integer linear programming (MILP) model is proposed with the objective of minimizing the total power consumption in software defined optical data center networks (SD-ODCNs) by reducing the active data centers and power-consuming network components. In addition, the coordinates of nodes and delay of links are considered for more realistic scenario. Comparing with existing node ranking method, proposed global topology resource (GTR) can effectively evaluate the possibility of each DC node to host virtual nodes. Based on GTR method, we propose location aware energy efficient VNE algorithm, namely GTR-VNE. Simulation results show that GTR-VNE can obtain up to 9.3% and 5% improvement of power consumption and acceptance ratio compared with benchmarks. Furthermore, based on GTR and artificial intelligence ant colony optimization (ACO), another energy efficient algorithm ACO-VNE is proposed. ACO-VNE can obtain up to 28.7% improvement on power consumption compared with GTR-VNE. In addition, ACO-VNE has better performance in terms of revenue cost ratio and acceptance ratio.

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Section: A Energy Efficiencymentioning

confidence: 99%

Location-Aware Energy Efficient Virtual Network Embedding in Software-Defined Optical Data Center Networks

Zong¹,

Hammad

et al. 2018

J. Opt. Commun. Netw.

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“…The idea of preferably optical routing is further emphasized in [36], which is an improvement over [37]. The optimization algorithm accommodates one connection request at a time, and each time changes the routing of the previously established lightpaths so as to minimize the total power consumption.…”

Section: Power Consumptionmentioning

confidence: 99%

A survey of multi-layer network optimization

Rožić

Klonidis

Tomkos

2016

2016 International Conference on Optical Network Design and Modeling (ONDM)

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“…Internet protocol (IP) is currently the most typical technology for transmitting multimedia information [1][2][3] with a hierarchical structure of multiple layers. These layers process the data packets in order, where the upper layer calls the lower one when completing the provided services.…”

Section: Introductionmentioning

confidence: 99%

Label Stacking Scenarios in Hybrid Wavelength and Code-Switched GMPLS Networks

Chen

2018

Electronics

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Multi-protocol label switching (MPLS) is a promising solution to implement high-speed internet protocol (IP) networks by reducing the layer number. To meet the increasing demand for data traffic, optical packet switching (OPS) is integrated under IP to provide high bandwidth to end users. Generalized MPLS (GMPLS) is perfectly compatible with the routing algorithm in IP/MPLS as it supports packet-switching functions. In this paper, we investigate the label stacking scenarios in GMPLS networks. In GMPLS, label stacking is done to reduce the node complexity by appending multiple labels to a single packet. Wavelength-division multiplexing (WDM) and optical code-division multiplexing (OCDM) signals have been widely used as identifying labels. As the labels can be permutated among the wavelengths or code dimensions, the structure of a label stack can be varied. However, studies on the relationship between label stacking scenarios and network performance are limited. To investigate this issue, we propose three label stacking models: sequential code distribution; sequential wavelength distribution, and random label distribution. The simulation results show that the sequential wavelength assignment, wherein the labels are uniformly distributed among the wavelengths, exhibits the best system performance in terms of the label-error rate (LER).

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Energy-Aware Algorithms for IP Over WDM Optical Networks

Cited by 24 publications

References 19 publications

Location-Aware Energy Efficient Virtual Network Embedding in Software-Defined Optical Data Center Networks

Location-Aware Energy Efficient Virtual Network Embedding in Software-Defined Optical Data Center Networks

A survey of multi-layer network optimization

Label Stacking Scenarios in Hybrid Wavelength and Code-Switched GMPLS Networks

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