A WDM star coupler network consists of a number of network nodes connected via optical fibers to a passive star coupler. In a single-hop WDM network, a data packet is transmitted from one node to another without going through intermediate nodes. A number of applications require information to be sent to multiple destinations. Therefore, supporting multicast communications is important for commu...

The Internet is emerging as the new universal telecommunication medium. IP over WDM has been envisioned as one of the most attractive architectures for the new Internet. Consequently survivability is a crucial concern in designing IP over WDM networks. This paper presents a survey of the survivability mechanisms for IP over WDM networks. A number of optical layer protection techniques have been...

Most existing wavelength-division multiplexed (WDM) networks employ circuit switching, typically with one session having exclusive use of one entire wavelength. Consequently they are not suitable for data applications involving bursty traac patterns. The All-Optical Network (AON) Consortium has developed an all-optical LAN/MAN testbed which provides time-slotted WDM service 1]. In this paper, w...

optical networks working on WDM (Wavelength Division Multiplexing) are prone to component failures. As these networks carry huge amount of information, fault management has become vital in maintaining survivability of high speed optical networks. In WDM networks failure of networks, failure of network element may cause the failure of several optical channels, thereby leading to large data losse...

In wavelength-division multiplexing (WDM) optical networks, the bandwidth request of a traffic stream can be much lower than the capacity of a lightpath. Efficiently grooming low-speed connections onto high-capacity lightpaths will improve the network throughput and reduce the network cost. In WDM/SONET ring networks, it has been shown in the optical network literature that by carefully groomin...

All-optical Wavelength DivisionMultiplexing (WDM) networks are believed to be a fundamental component in future high speed backbones. However, while wavelength routing made circuit switching in WDM feasible the reality of extant optical technology does not yet provide the necessary devices to achieve individual optical packet switching. This paper proposes to achieve all-optical packet switchin...

We investigate the provisioning of optical-frequency (wavelength) resources in optical networks that support broadband wireless access networks (BWANs). Millimeter-wave–over–fiber technology with operation in the 60-GHz licensefree band is considered for the BWANs. The WDM-based optical network (handling BWAN traffic) is heterogenous, implying that it also bears traffic originating from (or des...

Title of dissertation: OPTIMIZATION OF CONTEMPORARY TELECOMMUNICATIONS NETWORKS: GENERALIZED SPANNING TREES AND WDM OPTICAL NETWORKS Daliborka Stanojević, Doctor of Philosophy, 2005 Dissertation directed by: Associate Professor Subramanian Raghavan Department of Decision and Information Technologies We present a study of two NP-hard telecommunications network design problems the prize-collectin...

We use the analytical model for multi-®bre WDM networks to approximately analyse the network performance of limited-range wavelength conversion WDM networks. In addition, we develop a simple analytical model for multi-®bre networks with limited-range wavelength conversion capability by combining the multi-®bre network model and the limited-range wavelength conversion network model. Extensive ca...