Jorge Lopez Vizcaino

TL;DR: This paper is devoted to the study of energy efficiency in optical transport networks, comparing the performance of an innovative flexible-grid network based on Orthogonal Frequency Division Multiplexing (OFDM) with that of conventional fixed-grid Wavelength Division MultipleXing (WDM) networks with a Single Line Rate (SLR) and with a Mixed Line rate (MLR) operation.

TL;DR: This work considers a multilayer architecture, in which the optical layer can be realized either with a Wavelength Division Multiplexing (WDM) network or an Elastic Optical Network (EON) network, and focuses on the design and operation stages.

TL;DR: The results demonstrate the potential energy efficiency improvements that can be achieved by an elastic OFDM-based technology, especially when a shared protection scheme is adopted, and give an insight into the potential cost benefits that such a novel technology can offer to telecommunication carriers.

TL;DR: The results give an insight of the cost benefits that can be obtained with an elastic OFDM-based network for the operation of future optical transport networks with different protection schemes.

TL;DR: This work looks at the electrical and optical layers of IP-over-WDM networks, and presents a list of evaluation criteria for energy- aware adaptive routing solutions (EA-ARSs) from the perspective of a network operator.