Blackout Resilient Optical Core Network

doi:10.1109/TNET.2022.3156529

Blackout Resilient Optical Core Network

2022-08-01

6

OA

AI

Z

Zaid H. Nasralla *

T

Taisir E. H. El-Gorashi

Jaafar M. H. Elmirghani

DOI：10.1109/TNET.2022.3156529

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A disaster may not necessarily demolish the telecommunications infrastructure, but instead it might affect the national grid and cause blackouts, consequently disrupting the network operation unless there is an alternative power source(s). In disaster-resilient networks, fiber cut, datacenter destruction, and node isolation have been studied before with different scenarios, but the power outage impact has not been investigated before. In this paper, power outages are considered, and the telecommunication network performance is evaluated during a blackout. A mixed Integer Linear Programming (MILP) model is developed to evaluate the network performance for a single node blackout under two scenarios: minimization of blocking and minimization of renewable and battery energy consumption. Insights analyzed from the MILP model results have demonstrated the trade-off between the two evaluated optimization cost functions and shown that the proposed scheme can extend the network lifetime while minimizing the required amount of backup energy.

Keywords:

Routing

Power demand

Renewable energy sources

Power system reliability

Optical fiber networks

Batteries

Minimization

Blackout

core network

disaster-resilient

IP

WDM

power outage

Blackout Resilient Optical Core Network

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