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, Noise, Internal and External Noises, Signal-to-Noise (S/N) Ratio and

Noise Figure.

Amplitude Modulation:

Definition, Representation, Modulation Index, Expression for Instantaneous Voltage,

Power Relations, Frequency Spectrum, Concept of DSBFC, DSBSC, SSBSC Generation and Detection,

Limitations of AM, Demodulation, AM Detection, Diode Detector Circuit, Principle of Working and

Waveforms, Concept of VSB, Block Diagram of AM Transmitter and Receiver. [9]

Frequency Modulation and Phase Modulation: Definition, Representation, Modulation Index, Frequency

Spectrum, Bandwidth Requirements, Frequency Deviation and Carrier swing, Equivalence between FM and

PM, Generation of FM using VCO, Demodulation, FM Detector, Slope Detector Circuit, Principle of Working

and Waveforms, Block Diagram of FM Transmitter and Receiver, Comparison of AM and FM, Qualitative Idea

of Super Heterodyne Receiver. [9]

Analog Pulse Modulation:

Channel Capacity, Sampling Theorem, Basic Principles of PAM, PWM and PPM,

Modulation and Detection Technique for PAM only, Multiplexing, TDM and FDM. [5]

Digital Modulation Techniques:

Need for Digital Transmission, Block Diagram of Digital Transmission and

Reception, Pulse Code Modulation, Sampling, Quantization (Uniform and Non-uniform), Quantization Error,

Companding, Encoding, Decoding, Regeneration, Concept of Amplitude Shift Keying (ASK), Frequency Shift

Keying (FSK), Phase Shift Keying (PSK), Binary Phase Shift Keying (BPSK) and Quadrature Phase Shift

Keying (QPSK), Advantages and Disadvantages of Digital Communication, Characteristics of Data

Transmission Circuits, Shannon Limit for Information Capacity, Bandwidth Requirements, Data Transmission

Speed (Bit Rate and Baud Rate), Noise, Cross Talk, Echo Suppressors, Distortion and Equalizer. [9]

Cellular Communication: Concept of Cellular Mobile Communication, Frequency Bands used in Cellular

Communication, Concept of Cell Sectoring and Cell Splitting, Absolute RF Channel Numbers (ARFCN),

Frequency Reuse, Roaming and Hand Off, Authentication of SIM Card of Subscribers, IMEI Number, Need for

Data Encryption, Architecture (Block Diagram) of Cellular Mobile Communication Network, Concept of GSM,

CDMA, TDMA and FDMA, Comparison of TDMA and FDMA Technology, Simplified Block Diagram of

Cellular Phone Handset, Comparative Study of GSM and CDMA, Qualitative concepts of 2G, 3G and 4G,

Qualitative idea of GPS Navigation System. [9]

Satellite Communication:

Introduction, Need, Geosynchronous Satellite Orbits, Geostationary Satellite,

Advantages of Geostationary Satellites, Satellite Visibility, Transponders (C-Band), Friis Transmission

Equation, Path Loss, Ground Station, Simplified Block Diagram of Earth Station, Uplink and Downlink.

1. To Design an Amplitude Modulator using Transistor.

2. To Study Envelope Detector for Demodulation of AM Signal.

3. To Study FM Generator and Detector Circuit.

4. To Study Pulse Amplitude Modulation (PAM).

5. To Study Pulse Width Modulation (PWM).

6. To Study Pulse Position Modulation (PPM).

7. To Study ASK, PSK and FSK Modulators.

1. Roddy and Coolen, Electronic Communications, Pearson.

2. Tomasi, Advanced Electronic Communications Systems, Pearson.

3. Lathi and Ding, Modern Digital and Analog Communication Systems, Oxford.

4. Kennedy, Electronic Communication Systems, Tata McGraw Hill.

5. Frenzel, Principles of Electronic communication Systems, Tata McGraw Hill.

6. Haykin, Communication Systems, Wiley.

7. Blake, Electronic Communication Systems, Cengage.

8. Kundu, Analog and Digital Communications, Pearson.

9. Couch, Digital and Analog Communication Systems, Pearson.