Minimizing Energy and Cost in Fixed-Grid and Flex-Grid Networks

Papanikolaou, P.; Soumplis, Polyzois; Manousakis, Konstantinos; Papadimitriou, Georgios I.; Ellinas, Georgios; Christodoulopoulos, K.; Varvarigos, Emmanouel

doi:10.1364/jocn.7.000337

Cited by 27 publications

(9 citation statements)

References 11 publications

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“…There is also a broad number of earlier technoeconomic studies published in journals and conferences; however, most of them rely on the original equipment data provided by the seminal paper [19] from the STRONGEST project. Remarkable examples of application include the joint optimization of multilayer network design with and without protection [35][36][37][38], the feasibility and cost-saving opportunities of elastic/gridless optical networks [39][40][41], and cloud/grid design over optical WDM networks [42,43]. Other interesting technoeconomic studies on optical access technologies and C-RAN may also be found in [20,[44][45][46][47][48][49].…”

Section: Previous Workmentioning

confidence: 99%

Comprehensive model for technoeconomic studies of next-generation central offices for metro networks

Hernández¹,

Quagliotti²,

Serra³

et al. 2020

J. Opt. Commun. Netw.

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This paper introduces a novel and simplified cost model for designing and evaluating a Central Office Rearchitected as a Datacenter (CORD). The model includes equipment and elements for the realization of optical, packet switching, and data center parts with a special focus not only on relative costs but also on power consumption figures. The cost model is then applied to the design and comparison of a metropolitan area network (MAN) including both aggregation and metrocore nodes following several MAN node architectures based on CORD-like leaf-and-spine fabric. In particular, equipment disaggregation at the Central Offices, both on the packet-switching and optical components, can provide important cost savings to telco operators. On the other hand, incorporating computing/storage capabilities in the MAN for the realization of multiaccess edge computing (MEC) has a significant impact on the total network cost but especially on power consumption.

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Section: Previous Workmentioning

confidence: 99%

Comprehensive model for technoeconomic studies of next-generation central offices for metro networks

Hernández¹,

Quagliotti²,

Serra³

et al. 2020

J. Opt. Commun. Netw.

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“…The paper provides an energy‐aware multilayer network‐planning algorithm, considering the inputs such as network topology, the IP end‐to‐end traffic matrix, the modular model of the IP/MPLS routers, and the feasible configurations of the flexible optical transponders. Papanikolaou et al performed a comparative study of energy efficiency of flex‐grid networks, fixed‐grid single–line‐rate and fixed‐grid mixed–line‐rate networks under realistic network scenarios. They claim that power efficiency can be achieved by using energy‐aware techniques in planning phase.…”

Section: Related Workmentioning

confidence: 99%

“…In particular, we relate these features with the power consumption of the network components, showing the benefit of HFA in this perspective. Previous works targeting energy efficiency in core optical networks mostly studied influence of networking parameters while our focus is on parameters related to both network and physical layers. To obtain more significant and precise results, we firstly define proper models for both the transmission (ie, physical) and the network layer of the considered optical network.…”

Section: Introductionmentioning

confidence: 99%

Merit of hybrid EDFA/Raman amplification in fixed‐grid all‐optical network exploiting multirate transponders

Ahmad

Bianco

Chouman

et al. 2017

Int J Communication

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SummaryThe constant need to improve network capacity and reduce power consumption in current fixed-grid WDM networks motivates researchers to find alternative solutions other than replacing the deployed equipment. One of the possible solutions is the use of hybrid EDFA/Raman amplifier, which improves signal-to-noise-ratio in a point-to-point link. This work aims at quantifying, by means of a detailed power model, the effect of these novel ideas on the power consumption of the network, which is key to build a future green Internet. In particular, we consider the use of a randomly generated topology of 20 nodes to study the effect of hybrid amplification, fiber type, fiber span length, and sensitivity to average link length and average traffic per node. Results show that hybrid amplification in moderate pumping regime minimizes total network power consumption for networks made up of all 3 fiber types in particular for nonzero dispersion-shifted fiber.

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“…A specific network planning and operation tool, known as Mantis (Soumplis et al, 2014), has been used to analyze the energy efficiency of fixed and mixed line rates next-generation flexgrid networks. Finally, in Papanikolaou et al (2015) the fundamental causes of energy consumption in future flex-grid networks, have been identified, by proposing and comparing several energy containment techniques.…”

Section: Related Workmentioning

confidence: 99%

Energy efficiency of elastic frequency grids in multilayer IP/MPLS-over-flexgrid networks

Ricciardi

Palmieri

Castiglione

et al. 2015

Journal of Network and Computer Applications

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Flexgrid Optical Networks provide higher spectrum efficiency and flexibility in comparison to traditional wavelength switched optical networks (WSON) due to the finer granularity in managing communication channels at the WDM layer, thus allowing beyond 100 Gbps transmission capabilities. They also promise allocating part of the traffic aggregation function to the optical layer, thus reducing the use of energyhungry electronic devices. Accordingly, in this work, we analyzed these architectures from the power consumption perspective by evaluating the energy efficiency derived from introducing the Flexgrid technology in order to allow the shift of grooming and bandwidth aggregation functions at the optical layer, by envisioning a next generation of IP/MPLS-over-flexgrid transport architectures.

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Minimizing Energy and Cost in Fixed-Grid and Flex-Grid Networks

Cited by 27 publications

References 11 publications

Comprehensive model for technoeconomic studies of next-generation central offices for metro networks

Comprehensive model for technoeconomic studies of next-generation central offices for metro networks

Merit of hybrid EDFA/Raman amplification in fixed‐grid all‐optical network exploiting multirate transponders

Energy efficiency of elastic frequency grids in multilayer IP/MPLS-over-flexgrid networks

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