Improving efficiency of network resources in elastic optical transport network by using in-network cache functions

Miyamura, Takashi; Misawa, Akira

doi:10.1016/j.osn.2021.100629

Cited by 7 publications

(1 citation statement)

References 24 publications

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“…We assume time-varying traffic demand, so we need to reconfigure SFC placement and optical-path routing in response to traffic demand changes to maintain the efficiency of network resources. We previously proposed mathematical formulations considering some of these requirements [9]. However, the adaptive reconfiguration in response to demand changes was out of our scope.…”

Section: Mathematical Modelmentioning

confidence: 99%

Recent Progress in Optical Network Design and Control towards Human-Centered Smart Society

MIYAMURA,

MISAWA

2024

IEICE Trans. Commun.

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In this paper, we investigate the evolution of an optical network architecture and discuss the future direction of research on optical network design and control. We review existing research on optical network design and control and present some open challenges. One of the important open challenges lies in multilayer resource optimization including IT and optical network resources. We propose an adaptive joint optimization method of IT resources and optical spectrum under time-varying traffic demand in optical networks while avoiding an increase in operation cost. We formulate the problem as mixed integer linear programming and then quantitatively evaluate the trade-off relationship between the optimality of reconfiguration and operation cost. We demonstrate that we can achieve sufficient network performance through the adaptive joint optimization while suppressing an increase in operation cost.

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Section: Mathematical Modelmentioning

confidence: 99%