Transcription of DATA COMMUNICATIONS AND NETWORKING
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DATA COMMUNICATIONSANDNETWORKING Second Edition FM Page i Wednesday, February 23, 2000 2:30 PM FM Page ii Wednesday, February 23, 2000 2:30 PM DATA COMMUNICATIONSANDNETWORKING Second Edition Behrouz A. Forouzan DeAnza College with Catherine Coombs and Sophia Chung FeganBoston Burr Ridge, IL Dubuque, IA Madison, WI New York San Francisco StBangkok Bogot Caracas Lisbon London MadridMexico City Milan New Delhi Seoul Singapore Sydney Taipei Toronto FM Page iii Wednesday, February 23, 2000 2:30 PM DATA COMMUNICATIONS AND NETWORKINGP ublished by McGraw-Hill, an imprint of the McGraw-Hill Companies, Inc. 1221 Avenue of the Americas, New York, NY, 10020. Copyright 2001, 1998 by The McGraw-Hill Companies, Inc. All rights reserved. No part of this publication may be reproduced or distributed in any form or by any means, or stored in a database or retrieval system, without the prior written consent of The McGraw-Hill Companies, Inc.
4.6 DIGITAL SIGNALS 79 Decomposition of a Digital Signal 80 4.7 KEY TERMS AND CONCEPTS 81 4.8 SUMMARY 82 4.9 PRACTICE SET 83 Review Questions 83 Multiple Choice 84 Exercises 86 Chapter 5 Encoding and Modulating 91 5.1 DIGITAL-TO-DIGITAL CONVERSION 92 Unipolar 92 Polar 94 Bipolar 97 5.2 ANALOG-TO-DIGITAL CONVERSION 102 Pulse Amplitude Modulation ...
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