Topics Covered in Notes

Electronic communication: Introduction to communication – means and modes. Need for modulation. Block diagram of an electronic communication system. Brief idea of frequency allocation for radio communication system in India(TRAI). Electromagnetic communication spectrum, band designations and usage. Channels and base-band signals. Concept of Noise, signal-to-noise (S/N) ratio. (8 Lectures)

Analog Modulation: Amplitude Modulation, modulation index and frequency spectrum. Generation of AM (Emitter Modulation), Amplitude Demodulation (diode detector), Concept of Single side band generation and detection. Frequency Modulation (FM) and Phase Modulation (PM), modulation index and frequency spectrum, equivalenc between FM and PM, Generation of FM using VCO, FM detector (slope detector), Qualitative idea of Super heterodyne receiver

(12 Lectures)

Analog Pulse Modulation: Channel capacity, Sampling theorem, Basic Principles- PAM, PWM, PPM, modulation and detection technique for PAM only, Multiplexing.

(9 Lectures)

Digital Pulse Modulation: Need for digital transmission, Pulse Code Modulation,

Digital Carrier Modulation Techniques, Sampling, Quantization and Encoding. Concept of Amplitude Shift Keying (ASK), Frequency Shift Keying (FSK), Phase Shift Keying (PSK), and Binary Phase Shift Keying (BPSK).

(10 Lectures)

Introduction to Communication and Navigation systems: Satellite Communication– Introduction, need, Geosynchronous satellite orbits geostationary satellite advantages of geostationary satellites. Satellite visibility,

transponders (C - Band), path loss, ground station, simplified block diagram of earth station. Uplink and downlink. (10 Lectures)

Mobile Telephony System – Basic concept of mobile communication, frequency band used in mobile communication, concept of cell sectoring and cell splitting, SIM number, IMEI number, need for data encryption, architecture (block diagram) of mobile communication network, idea of GSM, CDMA, TDMA and FDMA technologies, simplified block diagram of mobile phone handset, 2G, 3G and 4G concepts (qualitative only). (10 Lectures)

GPS navigation system (qualitative idea only) (1 Lecture)

Suggested Books in Syllabus:

Electronic Communications, D. Roddy and J. Coolen, Pearson Education India.
Advanced Electronics Communication Systems- Tomasi, 6th edition, Prentice Hall.
Modern Digital and Analog Communication Systems, B.P. Lathi, 4th Edition, 2011,
Electronic Communication systems, G. Kennedy, 3rd Edn., 1999, Tata McGraw Hill.
Principles of Electronic communication systems – Frenzel, 3rd edition, McGraw Hill
Communication Systems, S. Haykin, 2006, Wiley India
Electronic Communication system, Blake, Cengage, 5th edition.
Wireless communications, Andrea Goldsmith, 2015, Cambridge University Press.