Rigid fixed-grid wavelength division multiplexing (WDM) optical networks can no longer
keep up with the emerging bandwidth-hungry and highly dynamic services in an efficient …

A detailed survey of approaches reducing energy consumption of core networks is
presented in this paper. We consider a multilayer architecture, in which the optical layer can …

Elastic optical networks (EONs) have been receiving extensive attention because of their
inherent flexibility and the efficiency with which they allocate fiber-bandwidth. For an EON …

The sliceable optical transponder, which can transmit/receive multiple optical flows, was
recently proposed to improve a transponder's flexibility. The upper-layer traffic can be …

Elastic optical network (EON) architectures have been recently proposed as a candidate
solution for provisioning of both huge bandwidth and flexible connections in next generation …

Elastic Optical Networks (EONs) are a promising optical technology to deal with the ever-
increasing traffic and the vast number of connected devices of the next generation of the …

Due to the development of broadband access technologies including FTTx and 5G, the
traffic in metro and core networks is forecasted to be more dynamic. To support this …

This chapter discusses the changes in technology option or design to support the elastic
concept in an optical network. Next, it introduces in detail some practical aspects of the …

It is known that in multilayer interdatacenter optical networks (ML-IDCONs), network services
can generate numerous data-oriented tasks (DoTs) that require not only inter-datacenter …

Due to the accelerated evolution of application services, optical network virtualization
simplifies optical-layer resource management and provides flexibility in spectrum resource …