In this paper we illustrate a new protocol stack, namely the FCNS (Future Core Networks System), primarily designed for carrying signalling information in the UMTS core network packet switched domain that will provide interoperability with the circuit switched domain and greater flexibility, robustness and security than the proposed schemes from the telecommunications community. The paper is di...

QPSX [1,16,21], a Queued Packet and Synchronous circuit eXchange, is a Metropolitan Area Network (MAN) proposed standard with IEEE 802.6. It is developed by QPSX Communications Pty. Ltd. and sponsored by Telecom Australia. QPSX is · a distributed broad-band, movable boundary [10] type communications switch, that provides integrated packet and circuit switching. Its capacity is dynamically alloc...

The computer metaphor has served brain science well as a tool for comprehending neural systems. Nevertheless, we propose here that this metaphor be replaced or supplemented by a new metaphor, the "Internet metaphor," to reflect dramatic new network theoretic understandings of brain structure and function. We offer a "weak" form and a "strong" form of this metaphor: The former suggests that stru...

In this chapter, the authors review several optical label processing techniques providing a comparison based on the potential for each technique to allow for implementation of a scalable and low latency optical packet switching cross-connect node. They present and demonstrate an optical packet switch sub-system employing in-band labeling to allow for transparent forwarding of multi-wavelength p...

This paper tries to estimate the capital investment required for the fixed-telephony network switching equipment as demanded by the fourth national development plan. As a first step, the Cobb-Douglas model is used as a successful demand forecasting model to estimate the demand over the target years. Then, an architectural plan is developed for the fixed-telephony switching network that takes in...

In this chapter, we discuss the key ideas underlying some recent developments in packet switching. They concern algorithms for scheduling packets through switching fabrics, primarily to maximize throughput and support differentiated quality of service. We first develop a model capturing the packet queueing and scheduling dynamics of the switch in a ‘vectorized’ framework, which allows for the r...