DATA COMMUNICATION AND NETWORKS

Paper Code: 
DCAI 501A
Credits: 
03
Periods/week: 
03
Max. Marks: 
100.00
Objective: 

The course will enable the students to:

  1. Learn the basics of data communication and networking concepts
  2. Identify different types of network protocols and digital transmission techniques.

 

Learning Outcome

Learning and Teaching Strategies

Assessment Strategies-

 

The students will:

CO41. Describe the advantages of using a layered network model and the role of each layer in the OSI and TCP/IP models

CO42: Classify various transmission media and distinguish guided and unguided media.

CO43. Relate various types of transmission methods.

CO44. Categorize and correct errors in the transmission system using error detection and correcting schemes.

CO45.Evaluate various data link protocols and importance of data control.

 

Approach in teaching:

Discussions

Tutorials, reading assignments,

Self-learning assignments,    Effective questions

 

Class test, Semester

end examinations,

Quiz, Assignments,

Presentation

 

 

9.00
Unit I: 

Data Communications & Network Models

Components, Data Representation and Data flow; Networks: Distributed Processing, Network Criteria, Categories of networks Physical Structure; Internet Protocols and Standards.

Network Models: Layered tasks, the OSI model, Layers in the OSI Model, TCP/IP protocol Suit

 

9.00
Unit II: 

Data, Signals & Transmission Media

Analog and Digital Data, Analog and Digital Signals, Periodic and Non periodic Signals, Transmission impairment, Throughput, Propagation speed, propagation time, Wavelength, Transmission modes.

Transmission Media: Guided media (Twisted Pair Cable, Coaxial Cable & Fiber-Optic Cable) and Unguided media (Radio wave, Microwave, Infrared & Light wave)

 

9.00
Unit III: 

Digital Transmission & Multiplexing

Digital to Digital Conversion: - Line coding (Unipolar, Polar & Bipolar, Digital to analog conversion: ASK, FSK, PSK & QAM, Analog to Analog conversion: Amplitude Modulation, Frequency Modulation & Phase Modulation. 

Multiplexing: FDM, WDM, Synchronous TDM and Statistical TDM.

 

9.00
Unit IV: 

Error Detection and Correction

Types of error: single bit, burst error, Error Detection: redundancy, parity check, CRC, checksum. Error Correction: Retransmission, Forward error correction, Burst error correction

 

9.00
Unit V: 

Data Link Control and protocol

Data Link control: Introduction of Flow and Error Control. Elementary Data Link Protocols: - Stop & Wait Protocol, Go-Back-N ARQ. Sliding window Protocols: - Selective Repeat ARQ.

 

ESSENTIAL READINGS: 
  • Behrouz A. Forouzan, “Data Communication and Networking”, 5th edition, Tata McGraw Hill, 2012.

 

REFERENCES: 

Suggested Reference Books

  • A. S. Tanenbaum, “Computer Networks”, Pearson Education Asia, 5th Ed., 2018.
  • William Stallings, “Data and computer communications”, Pearson education Asia, 10th Ed., 2021.

 

E-Resources including links:

  • https://nptel.ac.in
  • https://www.geeksforgeeks.org/

 

Reference Journals

  • https://www.researchgate.net/search?q=computer%20networks
  • https://www.sciencedirect.com/topics/engineering
  • https://jwcn-eurasipjournals.springeropen.com/

 

 

Academic Year: 
2023-24
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