Optical networks and the related technologies, network management software and services
have undergone remarkable developments, and such networks are now the ultra-high …

Methods, software products, and systems establish a connection between a source network
element and a destination network element in a communication network comprising a …

We consider the problem of grooming in all-optical networks to maximize traffic. We present
an integer-programming formulation while constraining the number of optical transceivers at …

While a single fiber strand in wavelength division multiplexing (WDM) has over a terabit-per-
second bandwidth and a wavelength channel has over a gigabit-per-second transmission …

Traffic grooming techniques are used to combine low-speed data streams onto high-speed
lightpaths with the objective of minimizing the network cost, or maximizing the network …

Dynamic traffic grooming in optical mesh networks is one of the most important and practical
problems for designing wavelength-division-multiplexing networks. Most of the previous …

In a WDM network, routing a request consists in assigning it a route in the physical network
and a wavelength. If each request uses at most 1/C of the bandwidth of the wavelength, we …

In recent years, minimization of SONET-ADMs (Synchronous Optical NETwork-Add-Drop
Multiplexers) in WDM (Wavelength Division Multiplexing) optical networks has gained a lot …

A central problem in optical networks is to assign wavelengths to a given set of lightpaths, so
that at most g of them that share a physical link get the same wavelength (g is the grooming …

In this paper, we study a new concept of traffic grooming in wavelength-division multiplexing
(WDM) ring networks that aims at eliminating both the bandwidth underutilization and the …