The traffic grooming problem is of high practical importance in emerging wide-area
wavelength division multiplexing (WDM) optical networks, yet it is intractable for any but …

In this paper, two traffic grooming approaches based on alternate path routing are proposed
to accommodate a greater number of connections in optical networks. In the first approach …

Motivated by the connection between graph decompositions and traffic grooming in optical
networks, we continue the investigation of the existence problem for (K_5∖e)-designs of …

We consider the problem of switching cost in optical networks, where messages are sent
along lightpaths. Given lightpaths, we have to assign them colors, so that at most g …

Traffic grooming is a major issue in optical networks. It refers to grouping low rate signals
into higher speed streams, in order to reduce the equipment cost. In SONET WDM networks …

The problem of grooming is central in studies of optical networks. In graph-theoretic terms,
this can be viewed as assigning colors to the lightpaths so that at most g of them (g being the …

A wavelength division multiplexed optical communication system including a first optical line
interface optically coupled to a first transponder and an optical demultiplexer through which …

We consider the problem of grooming paths in all-optical networks with tree topology so as
to minimize the switching cost, measured by the total number of used ADMs. We first present …

One of the major concerns in optical networks is the bandwidth underutilization problem. In
fact, as WDM technology keeps maturing, there is a bandwidth gap between the …

Traffic grooming in optical networks has gained significance due to the prevailing sub-
wavelength requirement of end users. Optical networks get upgraded to the latest …