DCN Course Module - Sep 2013

Lesson Plan Guideline

Superior University

Data Communication and NetworksModule Handbook

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TABLE OF CONTENTS

Sr. No Contents Page #

1. Course delivery arrangement 3

2. Course instructors 3

3. Course introduction 4

4. Course aims 4

5. Course coverage 5

6. Student gain 7

7. Teaching and learning methodologies 8

7.1. Lectures 8

7.2. Class activities 8

7.3. Simulations 8

7.4. Presentations 8

8. Assessments 8

8.1. Quizzes 8

8.2. Exam Papers 9

8.3. Assignments 10

9. Lecture plan 14

10. Grading of course 18

11. Academic and disciplinary policies 18

11.1. Late submissions 18

11.2. Absenteeism 18

11.3. Scholastic honesty 17

11.4. Plagiarism 19

11.5. Cover sheet 19

12. Class rules and regulations 19

13. Assessment GPA and percentages 20

14. Appendixes 22

i. Sample cover page 22

ii. Sample Exam Papers 23

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1. Course Delivery Arrangements

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Course Instructor

Name Mr. Saqib Maqsood

Contact Information [email protected]

Room and Building FET Office

Consultation Hours11:00 am - 12:30 pm02:00 pm - 03:00 pm

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Course Data Communication and Networks

Credit Hours 3

Lecture Duration 3 hours per week

Semester Duration 16 weeks

mailto:[email protected]


3. Course Introduction

The module of Data Communication and Networks is designed to acquaint students with

the diversity of data communication and networking tasks by giving them knowledge of OSI

and TCP/IP reference models which divides the complex task of data transfer into layers to

achieve modular approach benefits. This course emphasizes on the understanding of tasks

and functions performed on bottom two layers namely physical and data link layers and

their relationship with above layers. Some standards of electronic and telecommunication

data transfer will also be discussed.

Program: BTC

Semester: 5th Session: 2011-2015

Pre Requisites: None

Follow Up: Computer Networks

Text Book(s):

Computer Networks, 4th Edition by Andrew Tanenbaum. Data Communications, 7th Edition by William Stallings,

Prentice Hall. Data Communications and Networking, 4th Edition by

Behrouz A. Forouzan.

4. Course AimsThis module provides a broad overview of the subject of Data communications and

Networks for undergraduate students. The module has following specific aims:

To develop an understanding of computer communication principles.

To propose and evaluate alternative approaches to meeting specific

communication requirements.

To obtain a working knowledge of a variety of computer communications

technologies used in computer network infrastructures.

To develop a working knowledge of computer communications standards in terms

of their current status and future direction.

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5. Course CoverageKey topics included in this course are as follows:

1. Introduction and basic concepts

i. Basic communication model

ii. Line configurations

iii. Categorization of Networks

iv. Network topologies

v. Synchronous & asynchronous transmission

vi. Data transfer modes

vii. Internetworking

2. Network Models

i. The Internet communications model

ii. OSI Reference Model

iii. TCP/IP Protocol Architecture

3. Data Transmission

i. The Internet communications model

ii. Frequency Domain Concepts

iii. Time Domain Concepts

iv. Data rate and Bandwidth Concepts

v. Analog and Digital Representation of Data and Signals

vi. Analog and Digital Transmission

vii. Channel capacity models

viii. Transmission Impairments

4. Transmission Media

i. Channel capacity, frequency range & other characteristics of guided &

unguided media

ii. Guided Transmission Media

iii. Wireless Transmission Media

5. Signal Encoding

i. Digital Data, Digital Signals

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ii. Digital Data, Digital Signals

iii. Digital Data, Analog Signals

iv. Analog Data, Digital Signals

v. Analog Data, Analog Signals

6. Data Link Layer

i. Data Link Control

ii. Error detection and correction

iii. Cyclic codes

7. Data Interface

i. Serial and parallel transmission

ii. Characteristics of a data interface

iii. DTE-DCE Interface: (Electronic Industry Association) EIA 232, EIA 449,

EIA 530

iv. ISDN interface,

8. Bandwidth Utilization

i. Multiplexing

ii. Spreading

9. Switching

i. Circuit switching

ii. Packet switching

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6. Student Gain

ClassificationTeaching and learning

methodologyAssessment

Knowledge and Comprehension

At the end of this module, the successful students will be able to understand and comprehend: OSI reference model of computer

communication Analog and Digital Signals. Multiplexing and its types. DTE-DCE interface and other interface

standards: EIA 232, EIA 449, EIA 530 Transmission media: Guided and

Unguided Circuit Switching and Packet

Switching.

Students gain knowledge and understanding through lectures and self-directed study. Class activities will be used to enhance their understanding of the concepts. Comprehension will be improved through various written assignments and problems.

Students’ knowledge and understanding will be assessed through: quizzes, class assignments of varying lengths; mid and final term exam paper.

Application and Skills

At the end of this module, the successful students will be able to: Apply the knowledge in different

scenarios they will encounter while deploying a communications network.

To gather requirements for basic data communication networks.

Written reports, assignments and resource based learning will help students in strengthening their research and problem solving skills.

Students’ practical skills will be assessed by: written reports; and assignments.

Analysis and Synthesis

At the end of this module, the successful students will be able to: Analyze and distinguish between

different types and topologies of networks used.

Analyze different techniques to transmit data.

Analyze different types of media used in data communication.

Analyze different data interfaces used in the industry.

Students will learn summarizing and synthesizing skills through participation in lectures, group discussions, and self-directed study. Analytical skills will be learnt through the critical analysis of class assignments.

Students’ analysis and synthesis skills will be assessed by: assignments, and technical reports.

7. Teaching and Learning Methodology7


7.1 Lectures:

Lectures seek to make accessible to students the module and programme aims in addition

to crucial background and factual knowledge. Interactive lectures will introduce the

concepts, theories and application of the subject using relevant examples. Students will be

asked questions and are expected to discuss material from previous weeks. Handouts will

outline the principles of the methods and give examples related to different research

techniques. Students would be free to ask any question related to the subject matter

during and after lectures.

7.2 Class activities

Different types of activities will be used in the class not only to enhance students’ learning

but also to stimulate their interest towards the practical application of the topic/s. Class

activities include: individual and group discussions, reading and analysis based activities,

extempore presentations, role playing, etc.

7.3 Simulations:

Students will be encouraged to use and appreciate the beauty of available software tools

Wireshark, Etherial, PacketTracer, Matlab for traffic monitoring and topology building and

to solve network problem using modeling and simulation tools.

7.4 Presentation:

Formal and informal presentations will be conducted in class to allow students to gain

constructive feedback from their course instructors and peers regarding their assignments

and projects. This is also the way through which students can demonstrate and improve

presentation skills.

8. Assessments

8.1 Quizzes To ensure the increased learning and memorization of lectures by the students the

scheduled and unscheduled class quizzes will be carried out.

8.2 Exam Papers

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Mid and final term exams will be conducted in order to evaluate the students learning and

their understanding of the concepts. Exam paper will help in assessing the knowledge,

comprehension, analytical and synthesis skills of students (sample papers are attached in

annexure b). The detail of the content coverage in each term paper is discussed below:

Content coverage WeightageMid-Term Paper

Objective SubjectiveFoundation concepts 20 % 10 %OSI and TCP/IP models 20 % 10 %Data Transmission 20 % 40 %Transmission media 20 % 20 %Signal encoding schemes 20 % 20 %Total 25 %Brief description of Objective and Subjective parts:Objective part of the paper may contain all or any of the components given below:T/F, MCQs and Short Questions.Subjective part of the paper may contain:Detailed questions and numerical problems

Final-Term PaperObjective Subjective

Data link and error control 20 % 25 %Multiplexing 20 % 15 %Spread spectrum 15 % 15 %Circuit and packet switching 20 % 15 %Pre-mid content 25 % 30 %Total 50 %Brief description of Objective and Subjective parts:Objective part of the paper may contain all or any of the components given below:T/F, MCQs, and Short Questions.Subjective part of the paper may contain:Detailed questions and numerical problems

8.3 Assignments

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Assignment 1Introduction to Computer Networks

Objectives

By the end of this assignment, students will be able to: Comprehend network categories and topology

All questions are compulsory.

1.1 Assume five devices are arranged in a mesh topology. How many cables are needed? How many ports are needed for each device?

1.2 Discuss the advantages and disadvantages of mesh, star, bus, and ring topology.

1.3 What is the difference between half-duplex and full-duplex transmission modes?

1.4 Why are protocols and standards needed?

1.5 What are the advantages of a multipoint connection over a point-to-point connection?

1.6 What are some of the factors that determine whether a communication system is a LAN or WAN?

1.7 Mention the seven layers of the OSI reference model, and describe the basic function of each layer in one sentence.

1.8 What are the responsibilities of the network layer in the Internet model?

1.9 What is a peer-to-peer process?

1.10 Name some services provided by the application layer in the Internet model.

Evaluation Criteria (Total Marks: 10)

Sr.# Contents Marks1 Conceptual understanding 52 Brief and concise answer 33 Legibility 2

Instruction:It is an individual assignment that has to be submitted in the form of hard copy to your course instructor on given date and time.

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Assignment 2Analog and Digital Signals

Objectives

By the end of this assignment, students will be able to: Represent data, signals and understand multiplexing techniques


2.1 A signal travels from point A to point B. At point A, the signal power is 200 W. At point B, the power is 170 W. What is the attenuation in decibels?

2.2 Distinguish between baseband transmission and broadband transmission.

2.3 What is the theoretical capacity of a channel in each of the following cases:

Bandwidth: 20 KHz SNRdB = 40Bandwidth: 200 KHz SNRdB = 6Bandwidth: 1 MHz SNRdB = 20

2.4 Elaborate three types of transmission impairment.

2.5 What are the differences between parallel and serial transmission?

2.6 Two channels, one with a bit rate of 150 kbps and another with a bit rate of 140 kbps, are to be multiplexed using pulse stuffing TDM with no synchronization bits. Answer the following questions:

What is the size of a frame in bits?What is the frame rate?What is the duration of a frame?What is the data rate?

2.7 Which of the three multiplexing techniques is common for fiber optic links? Explain the reason.


Sr.# Contents Marks1 Conceptual understanding 52 Brief and concise answer 33 Legibility 2


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Assignment 3Signal Encoding

ObjectivesBy the end of this assignment, students will be able to:

Comprehend signal encoding schemes


3.1 Draw the graph of the NRZ-L scheme using each of the following data streams, assuming that the last signa11evel has been positive. From the graphs, guess the bandwidth for this scheme using the average number of changes in the signal level. Compare your guess with the corresponding entry in Table 4.1.a. 00000000b. 11111111c. 01010101d. 00110011

3.2 What is the total delay (latency) for a frame of size 5 million bits that is being sent on a link with 10 routers each having a queuing time of 2us and a processing time of 1us. The length of the link is 2000 Km. the speed of light inside the link is 2 x 108 mls. The link has a bandwidth of 5 Mbps. Which component of the total delay is dominant? Which one is negligible?

3.3 The input stream to a 4B/5B block encoder is 0100 0000 0000 0000 0000 OOOI. Answer the following questions:a. What is the output stream?b. What is the length of the longest consecutive sequence of Os in the input?c. What is the length of the longest consecutive sequence of Os in the output?

3.4 We have sampled a low-pass signal with a bandwidth of 200 KHz using 1024 levels of quantization.a. Calculate the bit rate of the digitized signal.b. Calculate the SNRdB for this signal.c. Calculate the PCM bandwidth of this signal.

3.5 A corporation has a medium with a I-MHz bandwidth (lowpass). The corporation needs to create 10 separate independent channels each capable of sending at least 10 Mbps. The company has decided to use QAM technology. What is the minimum number of bits per baud for each channel? What is the number of points in the constellation diagram for each channel? Let d =O.

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Sr.# Contents Marks1 Mathematical steps 52 Accuracy of the answer 33 Legibility 2


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9. Lecture plan Session Topics Session Objective

Introduction Lecture Break up

Week 1

Introduction Introduction to Data

Communications Basic Communication Model

Networks Protocols and standards

After attending this session, the students will be aware of different models of network as well as history of data communications.

Lecture 1Ice breaking session 10 min

Module discussion 10 minIntroduction to Data communications 30 minLecture 2Basic communication model 30 minNetworks 40 minProtocols and standards 15 min

Class Activity: Ice breaking session and discussion on moduleRevision 15 min

Reading assignment of the topics covered in classIntroduction

Week 2

Basic Concepts Categorization of Networks Network topologies Synchronous & asynchronous

transmission Data transfer modes Internetworking

After attending this session, the students will be able to differentiate the network categories, modes of transmission, and data transfer modes.

Lecture 3Students’ feedback from the previous session 10 min

Basic concepts 40 minLecture 4Categorization of Networks 20 minNetwork Topologies 40 minData transfer modes 30 min

Class Activity: Discussion on how the networks operateAssignment discussion 10 min

Assignment no. 1Network Models

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Week 3

Network Models The Internet communications

model OSI Reference Model TCP/IP Protocol Architecture

This session will provide an opportunity to the students that how encapsulation and de-encapsulation takes place whilst data routes in the network or over the internet.

Lecture 5Students’ feedback from the previous session

10 min

The Internet communications model 40 minLecture 6OSI Reference model 50 minTCP/IP Protocol Architecture 30 min

Class Activity: Discussion on networking equipmentReview of previous lectures 20 min

Reading assignment of the topics covered in class

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Physical layer and Media

Week 4

Data Transmission Distinction between Data

and Signals Frequency and time

domain concepts Data rate and Bandwidth

After this session, the students will be familiar with the terms like data and signals, frequency domain, time domain, data rate and bandwidth.


Data and signals 40 minLecture 8Frequency domain versus time domain 50 min

Data rate and bandwidth 30 minClass Activity: Quiz

Assignment discussion 20 minAssignment no. 2

Physical layer and Media

Week 5

Data Transmission Analog and Digital

Representation of Data and Signals

Analog and Digital Transmission

Channel capacity models Transmission impairments

After this session, the students would be aware of the representation of signals, transmission techniques, channel capacity models and impairments of the transmission media.


Representation of data and signals 40 min

Lecture 10Channel capacity models 50 minTransmission impairments 30 min

Brief review of previous topics 20 minReading Assignment till 3.5

Transmission Media

Week 6

Characteristics of guided and unguided media

Guided transmission media Wireless transmission media

After this session, the students will have a clear understanding of the characteristics of transmission media like wired and wireless.


Guided and unguided transmission media 40 min

Lecture 12Wireless transmission media 40 min

Class Activity: Familiarization with Packet Tracer Software Packet tracer software 60 min

Analog TransmissionLecture 13

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Week 7 Digital-to-analog conversion Analog-to-analog conversion

After this session, the students will be able to comprehend different modulation schemes and signal conversions.

Digital-to-analog conversion 50 minLecture 14Analog-to-analog conversion 100 min

Week 8 Mid-Term Exam

Data link layer

Week 9

Error control Selective Reject ARQ HDLC protocol

Error Types Single Bit Error Multiple Bit Error, Burst

Error

After studying this topic, the students will be able to understand different strategies of error control and error detection.

Lecture 15Attendance 05 minError control 45 minLecture 16

Error types 60 min

Class Activity: Discussion on solution of mid-term paper. Discussion on solution of Mid-term paper

40 minReading Assignment

Error Detection and Correction

Week 10

Error Detection Parity Vertical Redundancy

Check Longitudinal

Redundancy Check Block Sum Check Cyclic Redundancy

Check

This session will acquaint students with different error detection techniques.


Error detection 40 min

Lecture 18

Longitudinal redundancy check 30 min

Block Sum Check 25 min

Cyclic Redundancy Check 25 min

Class Activity: Problem solving sessionAssignment discussion 20 min

Assignment no. 3Data Interface

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Week 11

Serial and parallel transmission

Characteristics of data Interface

DTE-DCE Interface ISDN Interface

After this session, the students will be able to comprehend data interfaces and transmission modes.


Transmission modes 40 min

Lecture 20

Data Interfaces 80 min

Class Activity: Discussion on students’ queriesReview of lectures 20 min

Reading Assignment

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Multiplexing

Week 12

Frequency Division Multiplexing Synchronous Time Division

Multiplexing Statistical Time Division

Multiplexing

This session will familiarize students with different multiplexing techniques.


Frequency division multiplexing 40 minLecture 22

Synchronous time division multiplexing 45 min

Statistical time division multiplexing 45 min

Class Activity: Quiz Quiz 10 min

Spread Spectrum

Week 13

Frequency-hopping spread spectrum

Direct sequence spread spectrum

After this session, the students will be able to comprehend spread spectrum concepts.


Frequency-hopping spread spectrum 40 min

Lecture 24

Direct sequence spread spectrum 80 min

Reading Assignment Brief Review of previous topics 20 min

Switching

Week 14

Circuit switching Packet switching

After this session, the students will get understanding of circuit switching and packet switching as well as their comparison.


Circuit switching 40 min

Lecture 26

Circuit switching (cont’d) 30 min

Packet switching 50 min

Reading Assignment Brief Review of previous topics 20 min

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Week 15 Discussion will be conducted on the final term paper Revision of course

Week 16 Final Term Exam

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10. Grading of course

Sr.# Contents WeightagePre-Mid Assessment1 Assignments 10%2 Quizzes 10%3 Mid Term Exam 25%Post-Mid Assessment4 Quizzes 10%5 Assignments 10%6 Final Term Exam 40%Overall Percentage 100%

11. Academic & Disciplinary Policies

11.1 Late Submission:According to the University policy, an assignment submitted after the due date, without an

approved extension, will be penalized at the rate of 20% deduction of the possible

maximum marks of the assessment item. This policy is applicable till the next working day

after due date and time of assignment. Assignments submitted after this will be awarded

zero marks.

11.2 Absenteeism:Late coming and shortage in attendance i.e. 3 continual absents from class, ensure that

students will be struck off from the relevant subject. It is not acceptable for you to disturb

the class by entering late. If you are unavoidably late, then please wait outside until the

lecturer indicates you may come in.

11.3 Scholastic Honesty:

Superior University expects each student to do his/her own work. The University has "zero

tolerance" for cheating, plagiarism, unauthorized collaboration on assignments and papers,

using "notes" during exams, submitting someone else's work as one's own, submitting work

previously submitted for another course, or facilitating acts of academic dishonesty by

others. The penalties are severe!

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11.4 Plagiarism

University policy prohibits students plagiarizing, collusion, copying and ghost writing any

material under any circumstances. A student plagiarizes if he or she presents the thoughts

or works of another as one’s own. This definition may include:

Using another’s ideas without due acknowledgement;

Working with others without permission and presenting the resulting work as

though it was completed independently.

Aiding another student to plagiarize is also a violation of the plagiarism Policy

and may invoke a penalty.

11.5. Cover Sheets for Assessment:

A Faculty Specific Assignment Cover Sheet (available at university bookshop) is to be

completed and attached to each assessment item to be submitted.

12. Class Rules and Regulations All mobile phones must remain switched off (not kept on silent / vibration mode) for

the entire duration of a class. Any breach of this rule will lead to immediate

confiscation of the phone, which will only be returned after the semester is over.

No food, drinks, bubble gum or beetle-nut will be allowed inside the classroom.

In order to maintain the sanctity and decorum on the University Campus, all male

and female students are required to be dressed in a decent and appropriate

manner. Please note carefully that under no circumstances you will be allowed to

attend classes in a casual and shabby getup, for example, dirty and unironed clothes.

The University shall take a particularly stern view of any kind of immodest and

revealing clothes, such as shalwar-qameez with long slits, shirts with low necklines,

skirts and tight or torn jeans. Male students may wear shalwar-qameez with waist-

coat and sandals with straps.

Cheating, plagiarism, offensive language and disruptive behaviour will be addressed

according to policies for academic misconduct mentioned in the Students’

Handbook.

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A student must have maximum participation in class lecture and activities. He/she

should think critically to make effective arguments during the class.

Give respect to your class mates in terms of their opinions and arguments. A student

is encouraged to make opposing argument but maintain class decorum cannot be

ignored.

A 15-minute break will be given. Any student coming late or returning late after the

break will be considered absent for that day.

In case of cancellation / makeup of a class you shall be notified through the program

manager or class coordinator.

If you fail to attend at least 90% of the sessions you will receive an F grade for the

module

13. Assessment GPA and Percentages

(80-100%) This is an outstanding standard indicating comprehensive knowledge and

understanding of the relevant materials; demonstration of an outstanding

level of academic ability; mastery of skills (as identified in the assessment

task); and achievement of all assessment objectives.

(70-79%) This is an excellent standard indicating a very high level of knowledge and

understanding of the relevant materials; demonstration of a very high level of

academic ability; sound development of skills (as identified in the assessment

task); and achievement of all assessment objectives.

(60-69%) This is a very good standard indicating a high level of knowledge and

understanding of the relevant materials; demonstration of a high level of

academic ability; reasonable development of skills (as identified in the

assessment task); and achievement of all assessment objectives.

(50-59%) This is a satisfactory standard indicating an adequate knowledge and

understanding of the relevant materials; demonstration of an adequate level

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of academic ability; satisfactory development of skills (as identified in the

assessment task); and achievement of most assessment objectives.

Fail (less than 50%)

This is an unsatisfactory standard indicating an inadequate knowledge and

understanding of the relevant materials; insufficient evidence of academic

ability; failure to develop skills (as identified in the assessment task); and

failure to achieve assessment objectives.

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Appendix A

Introduction to Computer Networks

Session 2012-2016

Course Instructor______________

Submitted By

Name Roll No

Department of Electrical EngineeringSuperior University

Lahore

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Appendix B

Sample Exam Papers

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DCN Course Module - Sep 2013

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