Computer and Communication Networks - Softcover

Mir, Nader F.

9780131389106: Computer and Communication Networks

Softcover

ISBN 10: 0131389106 ISBN 13: 9780131389106

Publisher: Prentice Hall, 2006

As the number and variety of communication services grow, so do the challenges of designing cost-effective networks that meet the requirements of emerging technologies in wireless, sensor, and mesh networks. Computer and Communication Networks is the first book to offer balanced coverage of all these topics using extensive case studies and examples.

This essential reference begins by providing a solid foundation in TCP/IP schemes, wireless networking, Internet applications, and network security. The author then delves into the field’s analytical aspects and advanced networking protocols.

Students and researchers will find up-to-date, comprehensive coverage of fundamental and advanced networking topics, including:

Packet-switched networks and Internet Network protocols

Links

LAN Protocols

Wireless Networks

Transport Protocols

Applications and Management

Network Security

Delay Analysis

High speed protocols

Voice over IP

Optical Networks

Multicasting Protocols

Compression of Voice and Video

Sensor/Mesh Networks

Network architecture books are often criticized for not offering enough practical, scenario-based information. Computer and Communication Networks provides an effective blend of theory and implementation not found in other books.

Key features include:

Figures and images that simplify complex topics

Equations and algorithms

Case studies that further explain concepts and theory

Exercises and examples honed through the author’s twelve years of teaching about networking

Overall, readers will find a thorough design and performance evaluation that provides a foundation for developing the ability to analyze and simulate complex communication networks.

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About the Author:

Nader F. Mir is a professor in the Electrical Engineering Department of San Jose State University. He has received a number of prestigious national and university awards and has published numerous technical journal and conference papers in the field of communications and networking. He is a senior member of the IEEE and has served as a member of the Technical Program Committee and Steering Committee for a number of major conferences. He is also currently an editor for three major journals in communications and networking.

This textbook represents more than a decade of work. During this time, some material became obsolete and had to be deleted. In my days as a telecommunication engineer and a university professor, much has changed in the fields of data communications and computer networks. Nonetheless, this text covers both the foundations and the latest advanced topics of computer networking.

The Internet is a revolutionary communication vehicle by which we all conveniently communicate every day and do business with one another. Because of its complexities at both hardware and software levels, the Internet is a challenge to those who want to study this field. The growing number and variety of communication services offer obvious challenges for computer network experts in designing cost-effective networks to meet the requirements of emerging communication systems. This book fills the gaps in current available texts.

Objectives

This textbook offers a mix of theory, architecture, and applications. The lack of computer communications books presenting moderate analysis with detailed drawing figures covering both wireline and wireless communication technologies led me to write this book. The main objective of this book is to help readers learn the fundamentals and certain advance concepts of computer and communication networks, using a unified set of symbols throughout a single textbook. The preparation of this book responds to the explosive demand for learning computer communication science and engineering.

This book targets two groups of people. For people in academia, at both the undergraduate and graduate levels, the book provides a thorough design and performance evaluation of communication networks. The book can also give researchers the ability to analyze and simulate complex communication networks. For engineers who want to work in the communication and networking industry and need a reference covering various angles of computer networks, this book provides a variety of learning techniques: exercises, case studies, and computer simulation projects. The book makes it easy and fun for an engineer to review and learn from a reliable networking reference covering all the necessary concepts and performance models.

Organization of This Book

It would be impossible to cover all networking subjects in one textbook. The range of topics presented in this text, however, allows instructors to choose the topics best suited for their classes. Besides the explanations provided for each chapter, readers will learn how to model a communication network and how to mathematically analyze them. Readers of this text will benefit from the combination of theory and applications presented in each chapter, with the more theoretical portions of each chapter challenging those readers who are more ambitious. This book is organized into 20 chapters in two main parts as follows:

The ten chapters of Part I cover the fundamental topics in computer networking, with each chapter serving as a base for the following chapter. Part I of the book begins with an overview of networking, focusing on TCP/IP schemes, describing wireless networking, and ending with a discussion of the World Wide Web (WWW) and network security. Part I is most appropriate for readers with no experience in computer communications. The ten chapters in Part II cover detailed analytical aspects and a closer perspective of advanced networking protocols: switches, routers, multiplexers, delay and congestion analysis, multimedia networking, multicasting, data compression, voice over IP, optical networks, and sensor networks.

Chapter 1, Packet-Switched Networks, introduces computer networks, touching on the need for networks, explaining relevant packet-switched networks, and giving an overview of today's Internet. Fundamental concepts, such as messages, packets, and frames and packet switching versus circuit switching, are defined. Various types of packet-switched networks are defined, and how a message can be handled by either connection-oriented networks or connectionless networks is explained. Finally, this chapter presents a detailed analysis of packet size and optimizations.

Chapter 2, Foundation of Networking Protocols, presents the basics of the five-layer Internet Protocol reference model, as well as other protocols: the seven-layer OSI model and the equal-size packet protocol model.

Chapter 3, Networking Devices, introduces the overall architectures of networking devices, such as multiplexers, modems, and switching devices. Multiplexers are used in all layers of network. Networking modems are used for access to the Internet from remote and residential areas. Finally, switching devices, such as hubs, bridges, switches, and routers, are used to switch packets from one path to another.

Chapter 4, Data Links and Transmission, focuses on the links and transmission interfaces, the two basic components that networking starts with. This chapter presents both wired and wireless links and describes their characteristics, advantages, and channel access methods. This chapter also presents various error-detection and correction techniques at the link level and discusses the integrity of transmitted data. The chapter ends by presenting link-layer stop-and-wait and sliding-window flow control.

Chapter 5, Local Area Networks and Networks of LANs, explores the implementation of small networks, using the functional aspects of the fundamental knowledge gained in Chapters 2, 3, and Chapter 4 on basic protocols, devices, and links, respectively. The chapter provides some pointers for constructing a network with those devices and making connections, gives several examples of local area networks (LANs), and explains how such LANs are internetworked.

Chapter 6, Wireless Networks and Mobile IP, presents the basics of wireless networking. The chapter discusses challenges in designing a wireless network: management of mobility, network reliability, and frequency reuse. Next, the chapter presents an overview of wireless communication systems at all levels, from satellite to local-area networks and discusses wireless LANs and such standards as IEEE 802.11. The chapter then shifts to cellular networks, one of the main backbones of our wireless networking infrastructure. Mobile IP and Wireless mesh networks (WMNs), including WiFi and WiMAX technologies, are introduced at the end of this chapter.

Chapter 7, Routing and Internetworking, focuses on routing in wide area networks (WANs) and introduces related routing algorithms and protocols. Our networking infrastructure is clearly classified into those networks that use optimal routes and those that use nonoptimal routes. These two classes of algorithms are described in detail. Routing protocols are also classified as those that are applied within a domain and those that are applied beyond a domain. This chapter also presents congestion-control algorithms: network-congestion control and link-flow control. The chapter also looks at random early detection for congestion control and describes a useful technique to estimate the link-blocking probability.

Chapter 8, Transport and End-to-End Protocols, first looks at the basics of the transport layer and demonstrates how a simple file is transferred. This layer handles the details of data transmission. Several techniques for transmission control and protocol (TCP) congestion control are discussed. Next, congestion-avoidance methods, which are methods of using precautionary algorithms to avoid a possible congestion in a TCP session, are presented. The chapter ends with a discussion of methods of ATM congestion control. Chapter 9, Applications and Network Management, presents the fundamentals of the application layer, which determines how a specific user application should use a network. Among the applications are the Domain Name System (DNS); e-mail protocols, such as SMTP, and the World Wide Web (WWW).

Chapter 10, Network Security, focuses on security aspects of networks. After introducing network threats, hackers, and attacks, this chapter discusses encryption techniques: public-and private-key protocols, encryption standards, key-exchange algorithms, authentication methods, digital signature and secure connections, firewalls, IPsec, and security methods for virtual private networks.

Chapter 11, Packet Queues and Delay Analysis, begins Part II, discussing Little's theorem, Markov chain theorem, and birth and death processes. Queueing-node models are presented with several scenarios: finite versus infinite queueing capacity, one server versus several servers, and Markovian versus non-Markovian systems. Non-Markovian models are essential for many network applications, as multimedia traffic cannot be modeled by Markovian patterns. In addition, delay analysis, based on networks of queues, is discussed. Burke's theorem is applied in both serial and parallel queueing nodes. Jackson's theorem is presented for situations in which a packet visits a particular queue more than once, resulting in loops or feedback.

Chapter 12, Quality of Service and Resource Allocation, covers quality-of-service issues in networking. The two broad categories of QoS discussed are the integrated services approach, for providing service quality to networks that require maintaining certain features in switching nodes; and the differentiated services approach (DiffServ), which is based on providing quality-of-service support to a broad class of applications. These two categories include a number of QoS protocols and architectures, such as traffic shaping, admission control, packet scheduling, reservation methods, the Resource Reservation Protocol (RSVP), and traffic conditioner and bandwidth broker methods. This chapter also explains fundamentals of resource allocation in data networks.

Chapter 13, Networks in Switch Fabrics, looks inside switch fabrics of such Internet devices as routers. The chapter begins by classifying characteristics of switching networks and presenting features and basic definitions of switch fabrics. As the building blocks of switching ...

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