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The use of data communications and computer networks is constantly increasing, bringing benefits to most of the countries and peoples of the world, and serving as the lifeline of industry. Now there is a textbook that discusses data communications and networking in a readable form that can be easily understood by students who will become the IS professionals of the future.
Advanced Data Communications and Networks provides a comprehensive and practical treatment of rapidly evolving areas. The text is divided into seven main sections and appendices:
" General data compression
" Video, images, and sound
" Error coding and encryption
" TCP/IP and the Internet
" Network operating systems
" LANs/WANs
" Cables and connectors
Other topics include error detection/correction, image/video compression, digital video, digital audio, TCP/IP, HTTP, electronic mail, HTML, Windows NT, NetWare, UNIX, Fast Ethernet, ATM, FDDI, and much more.
Written by a respected academician who is also an accomplished engineer, this textbook uses the author's wide practical experience in applying techniques and theory toward solving real engineering problems. It also includes an accompanying Web site that contains software, source code, and other supplemental information.
Sommario
INTRODUCTION
Introduction
A Little Bit of History
Information
Digital versus Analogue
Conversion to Digital
Sampling Theory
Quantization
Exercises
COMPRESSION TECHNIQUES
Introduction
Compression Methods
Letter Probabilities
Coding Methods
Statistical Encoding
Repetitive Sequence Suppression
Differential Encoding
Transform Encoding
Exercises
Letter Probability Program
HUFFMAN/LEMPEL-ZIV COMPRESSION METHODS
Introduction
Huffman Coding
Adaptive Huffman Coding
Lempel-Ziv Coding
Lempel-Ziv-Welsh Coding
Variable-Length-Code LZW Compression
Disadvantages with LZ Compression
Practical Lempel-Ziv/Huffman Coding
Exercises
IMAGE COMPRESSION (GIF/TIFF/PCX)
Introduction
Comparison of the Different Methods
GIF Coding
TIFF Coding
GIF Interlaced Images
PCX Coding
Exercises
VIDEO SIGNALS
Introduction
Color-Difference Signals
Quadrature Modulation
Baseband Video Signals
Digitizing TV Signals
100 Hz Pictures
Compressed TV
HDTV Quality
Exercise
MOTION VIDEO COMPRESSION
Motion Video
MPEG-1 Overview
MPEG-1 Video Compression
MPEG-1 Compression Process
MPEG-1 Decoder
MPEG-1 Audio Compression
MPEG-2
MPEG-2 System Layer
Other MPEG-2 Enhancements
MPEG-2 Bit Rate
Exercises
SPEECH AND AUDIO SIGNALS
Introduction
PCM Parameters
Differential Encoding
Speech Compression
A-Law and µ-Law Companding
Speech Sampling
PCM-TDM Systems
Exercises
AUDIO SIGNALS
Introduction
Principles
Digital Audio Standards
Error Control
Interleaving
CD Audio System
Digital Audio Compression
The 44.1 kHz Sampling Rate
Exercise
AUDIO COMPRESSION (MPEG-AUDIO AND DOLBY)
Introduction
Psycho-Acoustic Model
MPEG Audio Coding
Backward/Forward Adaptive Bit Allocation Methods
Comparison between Forward and Backward Adaptive Methods
Dolby AC-1 and AC-2
Dolby AC-3 Coding
AC-3 Parameters
Exercises
ERROR CODING PRINCIPLES
Introduction
Modulo-2 Arithmetic
Binary Manipulation
Hamming Distance
General Probability Theory
Error Probability
Combinations of Errors
Linear and Cyclic Codes
Block and Convolutional Coding
Systematic and Unsystematic Coding
Feedforward and Feedback Error Correction
Error Types
Coding Gain
Exercises
ERROR CODING (DETECTION)
Introduction
Parity
Block Parity
Checksum
Cyclic Redundancy Checking (CRC)
Exercises
ERROR CODING (CORRECTION)
Introduction
Longitudinal/Vertical Redundancy Checks (LRC/VRC)
Hamming Code
Representations of Hamming Code
Single Error Correction/Double Error Detection Hamming Code
Reed-Solomon Coding
Convolutional Codes
Tutorial
DATA ENCRYPTION PRINCIPLES
Introduction
Government Pressure
Cryptography
Legal Issues
Basic Encryption Principles
Exercises
DATA ENCRYPTION
Introduction
Private-Key Encryption
Public-Key Encryption
Exercises
TCP/IP
Introduction
TCP/IP Gateways and Hosts
Function of the IP Protocol
Internet Datagram
ICMP
TCP/IP Internets
Domain Name System
Internet Naming Structure
Domain Name Server
BootpProtocol
Example Network
Exercises
TCP/IP II
Introduction
IP Ver6
Transmission Control Protocol
TCP/IP Commands
Exercises
ELECTRONIC MAIL
Introduction
Shared-File Approach Versus Client/Server Approach
Electronic Mail Overview
Internet Email Address
SMTP
X.400
MIME
Exercises
THE WORLD WIDE WEB
Introduction
Advantages and Disadvantages of the WWW
Client/Server Architecture
Web Browsers
Internet Resources
Universal Resource Locators (URLs)
Universal Resource Identifier
Intranets
Firewalls
Exercises
HTTP
Introduction
Operation
Intermediate Systems
Cache
HTML Messages
Exercises
HTML (INTRODUCTION)
Introduction
Links
Lists
Colors
Background Images
Displaying Images
Horizontal Lines
Exercises
HTML (TABLES, FORMS AND HELPERS)
Introduction
Anchors
Tables
CGI Scripts
Forms
Multimedia
Exercises
JAVA/JAVASCRIPT
Introduction
JavaScript
JavaScript Values, Variables and Literals
Expressions and Operators
JavaScript Operators
J
Info autore
Bill Buchanan
Riassunto
This volume provides a comprehensive and practical treatment of such rapidly evolving areas as Fast Ethernet, ATM networks, FDDI networks and many others. It analyzes practical LANs and WANs, and deals with how they interconnect with other networks.
