We develop algorithms for the design of optical packet-switched networks. These algorithms are aimed at upgrading an existing ber-based, network infrastructure, such as the NSFNET backbone, by using Wavelength Division Multiplexing (WDM) technology. The network architecture employs wavelength-routing optical switches which enable the establishment of all-optical, WDM channels, called lightpaths...

The development of key technologies for high-capacity optical transmission has made possible transmission experiments with very high data rates and a large number of wavelength channels. Based on the recent development of enabling technology, optical network functionality has made progress from simple point-to-point wavelength division multiplexed (WDM) links to automatically switched optical n...

The UTRAN consists of a set of Radio Network Subsystems connected to the Core Network through the Iu. The Iu interface has two flavours: the Iu-CS, connecting to the Circuit-Switched-domain, the Iu-PS when connecting to the Packet-Switched-domain. A Radio Network Subsystem (RNS) consists of a Radio Network Controller and one or more Node Bs. A Node B is connected to the RNC through the Iub inte...

The realization of electronically tunable RC-active filters is achieved by the use of periodically switched conductances within the filter. A method of analysis of RC networks containing periodically switched conductances is given, which is based on the impulse response of the network at a capacitance. The use of periodically switched conductances to tune RC-active filters has several practical...