Unit-1 (10 Lectures, Marks 15)
Electronic communication: Block diagram of an electronic communication system,
electromagnetic spectrum-band designations and applications, need for modulation, concept
of channels and base-band signals. Concept of Noise, Types of Noise, Signal to noise ratio,
Noise Figure, Noise Temperature, Friss formula.
Unit-2 (20 Lectures, Marks 25)
Amplitude Modulation: Amplitude Modulation, modulation index and frequency
spectrum. Generation of AM, Amplitude Demodulation (diode detector), Concept of
Double side band suppressed carrier, Single side band suppressed carrier, other forms of
AM (Pilot Carrier Modulation, Vestigial Side Band modulation, Independent Side Band
Modulation). Block diagram of AM Transmitter and Receiver
Angle modulation: Frequency and Phase modulation, modulation index and frequency
spectrum, equivalence between FM and PM, Generation of FM (direct and indirect
methods), FM detector (PLL). Block diagram of FM Transmitter and Receiver Comparison
between AM, FM and PM.
Unit -3 (15 Lectures Marks 20)
Pulse Analog Modulation: Channel capacity, Sampling theorem, PAM, PDM, PPM
modulation and detection techniques, Multiplexing, TDM and FDM.
Pulse Code Modulation: Need for digital transmission, Quantizing, Uniform and Nonuniform Quantization, Quantization Noise, Companding, Coding, Decoding, Regeneration.
Unit -4 (15 Lectures Marks 20)
Digital Carrier Modulation Techniques: Block diagram of digital transmission and
reception, Information capacity, Bit Rate, Baud Rate and M-ary coding. Amplitude Shift
Keying (ASK), Frequency Shift Keying (FSK), Phase Shift Keying (PSK), Binary Phase
Shift Keying (BPSK) and Quadrature Phase Shift Keying (QPSK)
Suggested Books:
1. Electronic communication systems- Kennedy, 3rd edition, McGraw international
publications
2. Principles of Electronic communication systems – Frenzel, 3rd edition, McGraw Hill
3. Communication Systems, S. Haykin, Wiley India (2006)
4. Advanced electronic communications systems – Tomasi, 6th edition, PHI.
5. Communication Systems, S. Haykin, Wiley India (2006)
Communication Electronics Lab (Hardware and Circuit Simulation Software)
60 Lectures, Marks 40
1. Study of Amplitude Modulation
2. Study of Amplitude Demodulation
3. Study of Frequency Modulation
4. Study of Frequency Demodulation
5. Study of Pulse Amplitude Modulation
6. AM Transmitter/Receiver
7. FM Transmitter/Receiver
8. Study of TDM, FDM
9. Study of Pulse Width Modulation
10. Study of Pulse Position Modulation
11. Study of Pulse Code Modulation
12. Study of Amplitude Shift Keying
13. Study of Phase Shift Keying,
14. Study of Frequency Shift Keying.
Electronic communication: Block diagram of an electronic communication system,
electromagnetic spectrum-band designations and applications, need for modulation, concept
of channels and base-band signals. Concept of Noise, Types of Noise, Signal to noise ratio,
Noise Figure, Noise Temperature, Friss formula.
Unit-2 (20 Lectures, Marks 25)
Amplitude Modulation: Amplitude Modulation, modulation index and frequency
spectrum. Generation of AM, Amplitude Demodulation (diode detector), Concept of
Double side band suppressed carrier, Single side band suppressed carrier, other forms of
AM (Pilot Carrier Modulation, Vestigial Side Band modulation, Independent Side Band
Modulation). Block diagram of AM Transmitter and Receiver
Angle modulation: Frequency and Phase modulation, modulation index and frequency
spectrum, equivalence between FM and PM, Generation of FM (direct and indirect
methods), FM detector (PLL). Block diagram of FM Transmitter and Receiver Comparison
between AM, FM and PM.
Unit -3 (15 Lectures Marks 20)
Pulse Analog Modulation: Channel capacity, Sampling theorem, PAM, PDM, PPM
modulation and detection techniques, Multiplexing, TDM and FDM.
Pulse Code Modulation: Need for digital transmission, Quantizing, Uniform and Nonuniform Quantization, Quantization Noise, Companding, Coding, Decoding, Regeneration.
Unit -4 (15 Lectures Marks 20)
Digital Carrier Modulation Techniques: Block diagram of digital transmission and
reception, Information capacity, Bit Rate, Baud Rate and M-ary coding. Amplitude Shift
Keying (ASK), Frequency Shift Keying (FSK), Phase Shift Keying (PSK), Binary Phase
Shift Keying (BPSK) and Quadrature Phase Shift Keying (QPSK)
Suggested Books:
1. Electronic communication systems- Kennedy, 3rd edition, McGraw international
publications
2. Principles of Electronic communication systems – Frenzel, 3rd edition, McGraw Hill
3. Communication Systems, S. Haykin, Wiley India (2006)
4. Advanced electronic communications systems – Tomasi, 6th edition, PHI.
5. Communication Systems, S. Haykin, Wiley India (2006)
Communication Electronics Lab (Hardware and Circuit Simulation Software)
60 Lectures, Marks 40
1. Study of Amplitude Modulation
2. Study of Amplitude Demodulation
3. Study of Frequency Modulation
4. Study of Frequency Demodulation
5. Study of Pulse Amplitude Modulation
6. AM Transmitter/Receiver
7. FM Transmitter/Receiver
8. Study of TDM, FDM
9. Study of Pulse Width Modulation
10. Study of Pulse Position Modulation
11. Study of Pulse Code Modulation
12. Study of Amplitude Shift Keying
13. Study of Phase Shift Keying,
14. Study of Frequency Shift Keying.
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