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 …

The emerging software defined networking (SDN) paradigm separates the data plane from
the control plane and centralizes network control in an SDN controller. Applications interact …

Optical networks are undergoing significant changes, fueled by the exponential growth of
traffic due to multimedia services and by the increased uncertainty in predicting the sources …

Software defined networking (SDN) has emerged as a promising paradigm for making the
control of communication networks flexible. SDN separates the data packet forwarding …

Orthogonal Frequency Division Multiplexing (OFDM) has recently been proposed as a
modulation technique for optical networks, because of its good spectral efficiency, flexibility …

Bandwidth fragmentation, a serious issue in elastic optical networks (EONs), can be
suppressed by proper management in order to enhance the accommodated traffic demands …

The rigid nature of current wavelength-routed optical networks brings limitations on network
utilization efficiency. One limitation originates from mismatch of granularities between the …

Increasing incidents of cyber attacks and evolution of quantum computing poses challenges
to secure existing information and communication technologies infrastructure. In recent …

Orthogonal frequency-division multiplexing (OFDM) is a modulation technology that has
been widely adopted in many new and emerging broadband wireless and wireline …

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 …