We propose a network reconfiguration heuristic, incorporating provisioning, upgrading, and
rerouting of lightpaths for multi-period planning. Using the same physical network …

In optical networks, the reach of the optical signal is controlled by the receiver's capability to
successfully receive the signal, degraded due to optical impairments and noise. This reach …

A lightpath configuration algorithm considering a multi-period traffic model is presented and
evaluated to a realistic German core network study. Strategically exploiting BVT excess …

In today's wide-area networks, the optical layer is a relatively static and inflexible commodity.
In response, Optical Topology Programming (OTP) has been proposed to enable fast and …

As optical networks become increasingly flexible and software driven, network operators
need to reconsider their present mode of network planning and operation, which traditionally …

To cope with the capacity increase and diversification of information services, enhancing
efficiency, flexibility, and agility in optical transport networks is becoming increasingly …

We evaluate four Routing, Configuration and Spectrum Assignment alternatives to increase
provisioned capacity in optical networks. Long-term planning shows that regenerators …

Abstract Reconfiguration in a Wavelength-Routed Optical Network is a process of
rearranging a virtual topology to meet traffic demands that change over a period of time. This …

With the recent advances in elastic optical networks, a significant increase in throughput is
promised with the use of bandwidth variable transponders. These transponders support …

We present algorithms for the design of optimal virtual topologies embedded on wide-area
wavelength-routed optical networks. The physical network architecture employs wavelength …