We consider the problem of traffic grooming in wavelength-division-multiplexing rings with
all-to-all uniform traffic. Our objective is to minimize the total number of electronic add-drop …

In this paper we consider a logical topology design problem on DWDM optical networks
where the traffic is quantized at sub-wavelength resolution and the critical factor to …

The emergence of wavelength-division multiplexing (WDM) technology provides the
capability for increasing the bandwidth of synchronous optical network (SONET) rings by …

Abstract SONET (Synchronous Optical NETworks) add-drop multiplexers (ADMs) are the
dominant cost factor in the WDM (Wavelength Division Multiplexing)/SONET rings. The …

The SONET ring is the most widely used optical network infrastructure today. While
deploying the WDM/SONET ring, traffic grooming is an important network-design problem …

In high-speed SONET/WDM rings, the dominant system cost may be the cost of electronic
components, or in other words, the cost of SONET ADMs (S-ADMs). The number of S-ADMs …

We address the problem of traffic grooming in WDM rings with all-to-all uniform unitary traffic.
We want to minimize the total number of SONET add-drop multiplexers (ADMs) required …

The problem of minimizing the number of bidirectional SONET rings required to support a
given traffic demand has been studied by several researchers. Here we study the related …

Automatic ring protection provides simple and rapid fault protection and restoration in
telecommunication networks. To implement the automatic ring protection in general …

The recent emergence of Wavelength Division Multiplexing (WDM) technology has led to a
tremendous increase in the available transmission capacity in wide-area netwo rk s …