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Data Communication

Data Communication refers to the exchange of data between two or more networked devices via a transmission medium like cables or Wi-Fi. It utilizes a "logical" framework of protocols to ensure "technical clarity" and accuracy during the transfer of information across "Business Information Systems."

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Data Communication

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Course Title: Data Communication

Course No: ENCT 253

Nature of the Course: Theory + Lab

Semester: 4

Full Marks: 40 + 60 + 25

Pass Marks: 16 + 24 + 10

Credit Hours: 3

Course Description

Course Objectives

Course Contents

1. Introduction

4 hrs5 marks

1.1. Analog data communication, data representation, data flows

1.2. Evolution of data communication

1.3. A communication model, data communication model

1.4. Networks (LAN, WAN), simplified network architecture, the OSI model

1.5. Data communication and networking for today enterprise

2. Data Communication Fundamentals

6 hrs9 marks

2.1. Analog and digital data

2.2. Analog signals, periodic and aperiodic signals, periodic signals characteristics (Time, frequency domain)

2.3. Introduction to Fourier series representation of periodic signal, Fourier transform representation of aperiodic signals, digital signals and its characteristics

2.4. Analog and digital transmission, transmission mode, transmission impairments (Attenuation, distortion, noise)

2.5. Data rate limits channel capacity, Nyquist bandwidth, Shannon capacity formula

2.6. Performance of network (Bandwidth, throughput, latency, jitter)

3. Transmission Media and Data Compression

8 hrs11 marks

3.1. Guided transmission media: Co-axial cable, twisted pair, optical fiber

3.2. Unguided transmission media: Radio waves, microwaves, infrared

3.3. Antenna basics, satellite communication, Bluetooth, Wi-Fi

3.4. Wireless propagation (Introduction to groundwave propagation, sky wave propagation and line of sight propagation), frequency bands

3.5. Error detection and correction: Parity, check sum, cyclic redundancy check, hamming code

3.6. Data compression: Lossy and lossless

4. Signal Encoding Technique

15 hrs20 marks

4.1. Analog data, analog signals: Modulation and its need, AM, FM, PM

4.2. Analog data, digital signals: PAM, PWM, PPM, PCM, DPCM, DM

4.3. Digital data, analog signal: ASK, FSK, PSK, QPSK, QAM

4.4. Digital data, digital signal: RZ, NRZ, AMI, Manchester, differential Manchester, B8ZS, HDB3 for data transmission

5. Multiplexing and Switching

8 hrs10 marks

5.1. Access introduction to multiplexing, application of multiplexing

5.2. Frequency division multiple

5.3. Time division multiple access

5.4. Asymmetric digital subscriber line, XDSL

5.5. Spread spectrum: DHSS, FHSS, CDMA

5.6. Intro switched communication network, connection oriented and connectionless

5.7. Switching devices: Types, importance and application

5.8. Circuit switching network: Circuit switching concepts, message switching

5.9. Packet switching: Virtual switching, datagram switching

6. Cellular Wireless Communications and Latest Trends

4 hrs5 marks

6.1. Overview of 1G, 2G, 3G and 4G

6.2. Cellular technology fundamental terminology: Cell, frequency-reuse, cluster, adjacent cell interference, co-channel interference, handoff strategies, architecture of GSM basics

6.3. Introduction to 5G networks, software defined networking, IOT communication, cloud computing and virtualization in data communication

Laboratory Works

1.Signal analysis using MATLAB
2.Implementation of small network using hub and switch in physical or simulation environment
3.Analog modulation generation and reconstruction
4.Pulse modulation generation and reconstruction
5.Conversion of given binary sequence into different line coding
6.Digital modulation (ASK, FSK, PSK) generation and reconstruction

Text Books

1.Stallings, W. (2007). Data and Computer Communications. India: Pearson Education.
2.Forouzan, B. A., Fegan, S. C. (2007). Data Communications and Networking (McGraw-Hill Forouzan Networking). United Kingdom: McGraw-Hill Higher Education.
3.Tanenbaum, A. S., Wetherall, D. (2011). Computer Networks. India: Pearson Prentice Hall.
4.Rappaport, T. S. (2024). Wireless Communications: Principles and Practice. United Kingdom: Cambridge University Press.

Notes:

Source:

This course provides students with a solid foundation in the principles and theories of data communication, including key terminology, protocols, and standards. It covers various types of transmission media, methods of data encoding, modulation techniques, and their implications for effective data transmission.

The objective of this course is to provide students with a solid foundation in the principles and theories of data communication, including key terminology, protocols, and standards. Also support to explore the various types of transmission media, including guided and unguided media, and their characteristics, advantages, and disadvantages. Furthermore, it introduces the methods of data encoding, modulation techniques, and their implications for effective data transmission.

Practical sessions covering signal analysis using MATLAB, network implementation, modulation techniques, line coding, and digital modulation. (22.5 hours)

This syllabus follows the official BCT curriculum of Tribhuwan University. In case of any doubt or revision, the university's published syllabus shall be considered authoritative. https://ioe.tu.edu.np/pages/computer-engineering-curriculum-structure-2635