Data Communications & Computer Networks ACOE312 Course Overview

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Data Communications &

Computer Networks

ACOE312

Course Overview

Fall 2008

Agenda

• Instructor & class details

• General comments

• Course objectives

• Students assessment

• Course outline

• Textbook(s)

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Instructor & class details• Your Lecturer

— Dr. Loizos Christofi, BEng(Hons) 1st class, MPhil, PhD, UMIST

• Specialization— Digital Communications and Computer Networks

• How to reach me

— Send me an email at [email protected]

• Dates/place— Lectures every Wednesday @15:00-17:30 in Room … Main

Building, Nicosia Campus— 12 weeks (Oct 2008 – Jan 2009)

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General comments

• This is a course dealing with data communications and computer networks— pace is fast, material is demanding

— highly theoretical course with some mathematical exercises

— every lecture is based on material covered in previous lectures

• Interactive lectures— if you have any question, interrupt the instructor anytime and ask…

— however, you should not talk between you during the lectures!

• Mobile phones— should be kept either switched-off or be kept on silent-mode

• Smoking—No smoking policy in all classrooms and corridors of FUC

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General comments

• There will be no labs!

• Course material is based on— the lecture notes— the main and recommended textbooks — homework/exercises in class

• Attend Lectures !!!— Don’t be late, try to attend classes on the scheduled time— May get an absence if delayed more than 5 minutes after

scheduled time of lecture.— Test and exam-relevant exercises will be given and discussed— No more than 4 absences (30%), otherwise you may not be

allowed to sit for final examinations

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General comments

• Complete course material is available online…

— download lecture notes and print them before each lecture from

http://staff.fit.ac.cy/com.cl/acoe312.html

— add your own comments during the lectures

— Check for the (New! uploaded on ../../2008) sign: up-to-date

material will be available the day before each lecture

• Material is a framework

— extra exercises/examples during classes

— need to study extra material in main and/or recommended textbooks

— if you miss a class then copy any comments from a fellow student

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Course objectives

to familiarize students with data communication principles such as the OSI and TCP/IP reference models and associated protocols, analogue and digital data transmission, transmission media, signal encoding and digital data communications techniques, data link flow and error control, multiplexing, circuit and packet switching

to introduce computer science and computer engineering students to topics in data and computer communications

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Students Assessment

Final exam: 60%

Coursework: 40%

Allocated as follows:

—Test 1 (lectures 2-4): 20%

—Test 2 (lectures 5-9): 20%

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Estimated student’s work time

distribution in hours

Number of ECTS credits for ACOE312: 5Average student working time: 125 hours, allocated as follows:

83TOTAL42TOTAL

15Preparation for final exam

18Preparation for the tests3Final exam

14Homework3Mid-term tests

36Private study36Lecture

Student’s private time (hours)Conduct hours

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D (50-54)

20% C (55-65)

40%

B (66-80)

10%

A (81-100)

10%E (0-49)

20%

Previous years’ students’ grade

statistics

E (0-49)

20%

A (81-100)

10% B (66-85)

20%

C (55-65)

20%

D (50-54)

30%

2005

2006

E (0-49)

28%

A (81-100)

11% B (66-85)

17%

C (55-65)

19%D (50-54)

25%

2007

0%

5%

10%

15%

20%

25%

30%

35%

40%

A B C D E

Grade

% o

f s

tud

en

ts

2005

2006

2007

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Course Outline (1/3)Chapter 1: (1st week, 8/10/08)

IntroductionsExplanation of what the course will coverIntroduction to Data Communications and Computer NetworkingCommunications model

Chapter 2: (2nd week, 15/10/08) Intro & OverviewProtocol architectureOSI model and TCP/IP protocol architecture

3rd week, 22/10/08: No Lecture

Chapter 3: (4th week, 29/10/07) Protocols and architecturesData Transmission concepts and terminologyAnalogue and digital data transmission Transmission impairments Channel capacity

Chapter 4: (4th week, 31/10/08) Data TransmissionTransmission mediaGuided transmissionWireless transmission and propagationLine-of-sight transmission Revision for Test 1

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Course Outline (2/3)5thWeek: (5/11/08)

Test 1 covering Chapters 2, 3 and 4

Chapter 5: (6th week, 12/11/07) Signal encoding techniques

Digital data, digital signals (RZ, NRZ-L, NRZI, Bipolar-AMI, Pseudoternary, Manchester, Differential Manchester encoding schemes)Modulation rateDigital data, analog signals (ASK, FSK, BFSK, MFSK, PSK, DPSK, QPSK, QAM)

Chapter 6: (7th, week, 19/11/08) Digital Data Communication Techniques

Digital data communication techniques Asynchronous and synchronous transmission Types of errorError detectionLine configurationsInterfacing (USB, RS-232, Firewire)

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Course Outline (3/3)Chapter 7 (8th week, 26/11/08) Data Link Control

Data link controlFlow and error control

Chapter 8 (9th week, 3/12/08) Multiplexing

MultiplexingFrequency Division MultiplexingSynchronous Time Division MultiplexingStatistical Time Division MultiplexingAsymmetric Digital Subscriber Line

Chapter 9 (10th week, 10/12/08) Circuit and packet switchingCircuit switching and packet switchingNetworks, concepts and principlesX.25 Revision for Test 2

11th week (17/12/08)Test 2 covering Chapters 5, 6, 7, 8 & 9

12th week (7/01/09) Exercises in class and revision for final examinations

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Required Main Text Book

William Stallings,

“Data & Computer Communications”

7th Edition, Prentice Hall, 2004

• It is highly recommended that you get and study this book

• Each lecture will assume that you have studied all previous material

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Other recommended textbooks

Fred Halsall,

“Data Communications, Computer Networks and Open

Systems”, Fourth edition, Addison-Wesley, 1996

Andrew S. Tanenbaum, “Computer Networks”, Fourth edition, Prentice Hall, 2003

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Useful web resources• W. Stallings website:

http://www.WilliamStallings.com/DCC/DCC7e.html

• Internet Engineering Task Force:

http://www.ietf.org

• IEEE Communications Society

http://www.ieee.org

• International Telecommunications Union

http://www.itu.int

• International Organisation of Standardisation:

http://www.iso.org

• Links to vendors, tutorial and other useful information:

http://www.commweb.com

• Online encyclopaedia

http://users.pandora.be/educypedia/computer/

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Some fundamental prefixes

1·10-12 = 0,000000000001 pico1 p

1·1012 =1.000.000.000.000Tera1 T

1·109 = 1.000.000.000Giga1 G

1·106 = 1.000.000Mega1 M

1·103 = 1.000 kilo1 k

1·10-3 = 0,001 milli1 m

1·10-6 = 0,000001 micro1 µ

1·10-9 = 0,000000001 nano1 n

ValuePronouncedPrefix

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Any questions so far

?