Higher-order modulation formats and spectral super-channels are key to maximizing
spectral efficiency (SE) in next-generation optical transport networks, thereby …

Flexible grid optical networks are emerging as an appealing solution for future high-speed
optical transport because they can provide superior flexibility and scalability and cope with …

The advent of spectrally flexible (aka elastic) optical networking is widely identified as the
next generation optical network solution that permits varying bandwidth demands to be …

This paper proposes a novel network planning strategy to jointly allocate physical layer
resources together with the routing and spectrum assignment in transparent nonlinear …

Given the introduction of coherent 100G systems has provided enough fiber capacity to meet
data traffic growth in the near term, enhancing network efficiency will be service providers' …

This paper introduces Split Spectrum, which enhances elastic optical networking by splitting
a bulk traffic demand into multiple channels, when a single-channel transmission is …

Spectrum-efficient optical transmission with bitrates of 400 Gb/s and beyond can be
achieved using flexible modulation with advanced DSPs. The technology options include …

Flexgrid technology is now considered to be a promising solution for future high-speed
network design. In this context, we need a tutorial that covers the key aspects of elastic …

In this paper, we study the joint resource allocation in flexible-grid networks based on a
nonlinear physical layer impairment model. An optimization problem is formulated to assign …

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 …