We study the minimization of ADMs (add-drop multiplexers) in optical WDM networks with
bidirectional ring topology considering symmetric shortest path routing and all-to-all unitary …

Much work has focused on traffic grooming in WDM ring networks. Previous work has
considered many aspects of traffic grooming, including minimizing the number of ADMs …

We consider the problem of traffic grooming in WDM ring networks. Traffic grooming is a
variant of the well-known logical topology design problem, and is concerned with the …

We consider the traffic grooming problem in WDM/SONET rings with multiple line speeds.
This is motivated by the fact that when traffic demands are non-uniform and are spread over …

In WDM networks, traffic grooming is a fundamental and important operation for aggregating
multiple low-rate channels from the end users into a high-rate wavelength channel. In the …

In this paper, we study the benefits of using tunable transceivers for reducing the required
number of electronic ports in wavelength-division-multiplexing/time-division multiplexing …

In optical networks, regenerators have to be placed on lightpaths every d consecutive nodes
in order to regenerate the signal. In addition, grooming enables the use of the same …

Shared counters are among the most basic coordination structures in distributed computing.
Known implementations of shared counters are either blocking, non-linearizable, or have a …

In this paper, we propose novel traffic grooming algorithms to reduce the cost of the entire
system in WDM multi-ring networks. In order to achieve this goal, it is important to construct a …

We consider the role of switching in minimizing the number of electronic ports [eg,
synchronous optical network (SONET) add/drop multiplexers] in an optical network that …