In this thesis we analyze broadband switching architectures based on the Asynchronous Transfer Mode (ATM). Many architectures have been proposed in the literature for high-speed packet switches. We first review some of these switch architectures and their performance. The high-performance switch architectures, in general, require that the buffers be placed at the output ports. These output buffered switches tend to have large hardware complexity or require high speedup in their operation. Our focus is on high-performance switch architectures with low speedup output buffers or a shared buffer. An N $\times$ d ATM switch with finite output buffers is modeled as a discrete-time queue. The case d = 1 represents an ATM multiplexer with N input source and a finite capacity buffer. Loading at the input as well as at the output is considered to be imbalanced, which greatly affects the switch performance especially the hot spot traffic pattern. We also consider the switch with reduced speedup. In this case, the number of cells going to an output buffer in one time slot is limited to L N. This greatly simplifies the implementation of the switch. The arrivals to an input port of the switch, besides being bursty, are correlated in the sense that a burst arriving to an output port brings with it several cells belonging to the same virtual connection. As a worst case, we assume that consecutive cells in a burst are heading to the same output port. This greatly affects the dimensioning of the switch buffer. The input process to each input port is modeled by an Interrupted Bernoulli Process (IBP). We have developed an aggregation technique which allows the reduction of the state space that describes the arrival processes to the switch. This makes handling the output buffer driven by the induced process more manageable. Traffic priorities in ATM networks is an important issue because such networks will support applications with diverse traffic characteristics. In the light of this, we consider traffic priorities in an output buffered switch and in a completely shared-buffer switch. The transient analysis of the output buffer is also studied by considering the mean time until buffer overflow. The switch architecture that has the maximum mean-time-to-blocking is favorable. The busy period of the output buffer is also characterized. In routing the whole burst to an output buffer, the output process becomes more bursty than the input process.

In this thesis, we present an analysis of three novel switch architectures for Broadband-ISDN using the Asynchronous Transfer Mode (ATM). Our focus is on high-performance switch architectures, which have low to medium hardware complexity.

An authoritative introduction to the roles of switching and transmission in broadband integrated services networks Principles of Broadband Switching and Networking explains the design and analysis of switch architectures suitable for broadband integrated services networks, emphasizing packet-switched interconnection networks with distributed routing algorithms. The text examines the mathematical properties of these networks, rather than specific implementation technologies. Although the pedagogical explanations in this book are in the context of switches, many of the fundamental principles are relevant to other communication networks with regular topologies. After explaining the concept of the modern broadband integrated services network and why it is necessary in today’s society, the book moves on to basic switch design principles, discussing two types of circuit switch design—space domain and time domain—and packet switch design. Throughput improvements are illustrated by some switch design variations such as Speedup principle, Channel-Grouping principle, Knockout principle, and Dilation principle. Moving seamlessly into advanced switch design principles, the book covers switch scalability, switch design for multicasting, and path switching. Then the focus moves to broadband communications networks that make use of such switches. Readers receive a detailed introduction on how to allocate network resources and control traffic to satisfy the quality of service requirements of network users and to maximize network usage. As an epilogue, the text shows how transmission noise and packet contention have similar characteristics and can be tamed by comparable means to achieve reliable communication. Principles of Broadband Switching and Networking is written for senior undergraduate and first-year postgraduate students with a solid background in probability theory.

A handy source for practicing engineers and researchers, this book offers collected examples of successful performance evaluation of high speed telecommunications switching fabrics such as ATM networks and high speed interconnection technology for computers. It emphasizes the performance evaluation of such switches as they apply to predicting a proposed system's performance through the use of statistical models -- a cost-saving way for communications engineers to test the design of a system without having to construct it.

This book defines and evaluates packet switching and reviews its implementation and applications. the information provided will help you to understand the technology and to better judge important parameters that will influence future industry decisions. It presents thought-provoking and even controversial viewpoints about the future role and alternative migration paths for packet switching in ISDN.

Complete and comprehensive coverage of packet switching concepts and technologies The rapid growth of Internet traffic has spurred a new concentration on IP routers and ATM, MPLS, and optical switches. This book addresses the basics, theory, architectures, and technologies for implementing ATM switches and IP routers. It focuses on the architecture for the next generation of broadband switches and routers and provides detailed treatment of both theoretical and practical topics for professionals and students alike. Broadband Packet Switching Technologies is written with engineers and industry researchers in mind. It describes the basic concepts and fundamentals of ATM switches and IP routers, then divides the switches into different categories. In each category, the authors discuss the operations, problems, strengths, and weaknesses of the switches in performance and implementation. Detailed solutions and algorithms are also provided. The authors also extend fundamental packet-switching concepts to wireless and fiber-optic networks. Broadband Packet Switching Technologies fills the need for a textbook and reference dedicated to high-speed networking technologies that serves the specific needs of professionals in the telecommunications industry and provides expert material for students in related fields.

The book outlines Sysnet Modelling, a method for modelling systems architecture. The method is particularly well suited for telecom networks and systems, although a large part of it may be used in a wider context.