VL3401 Principles of Communication Systems Syllabus:

VL3401 Principles of Communication Systems Syllabus – Anna University Regulation 2021

COURSE OBJECTIVES:

• To understand various analog modulation techniques
• To understand the principles of pulse and digital modulation techniques
• To explore the principles of digital data transmission
• To introduce the fundamentals of RF and microwave
• To explore basics of communication networks

UNIT I ANALOG MODULATION

Introduction to communication systems – Analog and digital messages – SNR, Channel bandwidth and Rate of communication – Modulation – Randomness, redundancy and coding – Baseband and carrier communication – Amplitude modulation – Double side band AM – single side band AM – Vestigial sideband AM – Superheterodyne AM receiver – Concept of instantaneous frequency – Generation and demodulation of FM –FM receiver – Bandwidth of angle modulated waves

UNIT II PULSE AND DIGITAL MODULATION

Pulse amplitude modulation – Pulse position modulation – Pulse width modulation – Sampling theorem – pulse code modulation – Differential pulse code modulation – Delta modulation – Error Control Coding

UNIT III PRINCIPLES OF DIGITAL DATA TRANSMISSION

Digital communication system – Line coding – Pulse shaping – Scrambling – Regenerative repeater – Detection error probability – M-ary communication – Digital carrier systems – Digital multiplexing

UNIT IV RF AND MICROWAVE FUNDAMENTALS

Frequency Bands – Physical Phenomena in the High Frequency Domain – Multi-Port Network Representations – Normalized Power Waves – Scattering Parameters and Power – S-Parameter Representation of Network Properties – Calculation of S-Parameters – RF Components and Circuits: Resonator- Impedance Matching- Filter Circulator- Directional Coupler – Balanced-to-Unbalanced Circuits – Electronic Circuits – Standard Types of Antennas – Radio frequency and Microwave Applications

UNIT V COMMUNICATION NETWORKS

Networks: Distributed Processing – Network Criteria – Types of connections – Physical topologies – Categories of Networks – Interconnection of Networks -Network Models – The OSI Model – Layers In The OSI Model – TCP/IP Protocol Suite – Addressing: Physical Addresses – Logical Addresses – Port Addresses – Specific Addresses

45 PERIODS

PRACTICAL EXPERIMENTS

1. Analog Modulation- AM, FM
2. Pulse Modulation (PAM, PPM, PWM and PCM).
3. Digital Modulation–ASK, FSK.
4. Delta Modulation and Demodulation.
5. Study of Network Topology using hardware- Star, Bus and Ring

30 PERIODS
TOTAL 75 PERIODS

TEXT BOOKS

1. B.P.Lathi, “Modern Digital and Analog Communication Systems”, 4th Edition, Oxford University Press, 2011
2. D.Roody, J.Coolen, Electronic Communications, 4th edition PHI 2006
3. Frank Gustrau, “RF and microwave engineering: Fundamentals of wireless communications”, Wiley, 2012.
4. Behrouz A. Forouzan,Sophia Chung Fegan, “Data Communications and Networking”, Fourth Edition, McGraw-Hill, 2007.

REFERENCES

1. WaynerTomasi, Electronic Communication System, 5th Edition, Pearson Education,2008
2. B.Sklar, “Digital Communications Fundamentals and Applications”, 2nd Edition Pearson Education 2007
3. H P Hsu, Schaum Outline Series – “Analog and Digital Communications” TMH 2006
4. Couch.L., “Modern Communication Systems”, Pearson, 2001
5. Annapurna Das, Sisir K. Das, “Microwave Engineering”, McGraw Hill Education (India)private limited, Third edition,2000.

COURSE OUTCOMES:

At the end of this course, the students will be able:
• To develop analog modulation circuits
• To implement pulse and digital modulation techniques
• To describe digital data transmission schemes
• To enumerate basic RF and microwave devices and applications
• To analyze network topologies