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Introduction to Data Communications
ECI-M-917 http://eent3.lsbu.ac.uk/staff/baoyb/idc
Methods of Teaching and Learning : Lecture, Tutorial and WorkshopAssessment of the unit :2-hour written examination -- 70% a laboratory report (BB submission) -- 30%
Lecturer: Ya Bao and Vincent Siyau.
Textbook: Computer Networks 4/E, by Andrew S. Tanenbaum, Publisher: Prentice-Hall, 2003. ISBN: 0-13-038488-7.
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Available from Blackwell’s, London Road
Benefits of purchasing this book:
• New problems and lab exercises at the end of each chapter helps reinforce concepts presented and pass your exams
• Based on real-world networks and networking challenges, enabling you to apply theory to the types of problems you are most likely to encounter in industry
• Companion Website containing PowerPoint slides and other learning tools
Andrew TanenbaumComputer Networks 4th Edition
e-book is available at: (access from LSBU host) http://0-proquest.safaribooksonline.com.lispac.lsbu.ac.uk/0130661023
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Background Reading(essential for students who lack of
communication background)
Data and Computer Communications 8/E, by W. Stalling, Publisher: Prentice-Hall, 2007.
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Data Communications and Networking 4/E, by B. Forouzan, Publisher: McGraw-Hill, 2006.
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Simplified Communications Model - Diagram
Chapter 1 Introduction
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Communications Tasks
Transmission system utilization
Addressing
Interfacing Routing
Signal generation Recovery
Synchronization Message formatting
Exchange management Security
Error detection and correction
Network management
Flow control
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Networking
• Business Applications
• Home Applications
• Mobile Users
• Social Issues
•Point to point communication not usually practical—Devices are too far apart—Large set of devices would need impractical number of connections
•Solution is a communications network
—Wide Area Network (WAN)
—Local Area Network (LAN)
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Classification of interconnected processors by scale
Classification of interconnected processors by scale.
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ProtocolsUsed for communications between entities in a system
Must speak the same language
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Design Issues for the Layers
• Addressing
• Error Control
• Flow Control
• Multiplexing
• Routing
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Reference Models
The TCP/IP reference model.
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Hybrid Model
The hybrid reference model to be used in this unit.
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Example Networks
• The Internet
• Connection-Oriented Networks: X.25, Frame Relay, and ATM
• Ethernet: 802.3
• Wireless LANs: 802:11Other networks
PSTN (Public Switched Telephone Network)
GSM and UMTS
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IEEE 802 Standards
The 802 working groups. The important ones are marked with *. The ones marked with are hibernating. The one marked with † gave up.
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Metric Units
The principal metric prefixes.