SYLLABUS 4 JNTU BME - PRINCIPLES OF COMMUNICATIONS

PRINCIPLES OF COMMUNICATIONS

UNIT I
Introduction : Block diagram of Electrical communication system, Radio communication :
Types of communications, Analog, pulse and digital Types of signals, Fourier Transform for
various signals, Fourier Spectrum, Power spectral density, Autocorrelation, correlation,
convolution.
UNIT II
Amplitude Modulation : Need for modulation, Types of Amplitude modulation, AM, DSB
SC, SSB SC, Power and BW requirements, generation of AM, DSB SC, SSB SC,
Demodulation of AM : Diode detector, Product demodulation for DSB SC & SSB SC.
UNIT III
Angle Modulation : Frequency & Phase modulations, advantages of FM over AM, Bandwidth
consideration, Narrow band and Wide band FM, Comparison of FM & PM.
UNIT IV
Pulse Modulations : Sampling, Nyquist rate of sampling, Sampling theorem for Band limited
signals, PAM, regeneration of base band signal, PWM and PPM, Time Divison Multiplexing,
Frequency Divison Multiplexing, Asynchronous Multiplexing.
UNIT V
Digital Communication : Advantages, Block diagram of PCM, Quantization, effect of
quantization, quantization error, Base band digital signal, DM, ADM, ADPCM and comparison.
UNIT VI
Digital Modulation : ASK, FSK, PSK, DPSK, QPSK demodulation, coherent and incoherent
reception, Modems.
UNIT VII
Information Theory : Concept of information, rate of information and entropy, Source coding
for optimum rate of information, Coding efficiency, Shanon-Fano and Huffman coding.
UNIT VIII
Error control coding : Introduction, Error detection and correction codes, block codes,
convolution codes.

TEXTBOOKS
1. Communication Systems Analog and Digital – R.P. Singh and SD Sapre, TMH, 20th
reprint, 2004.
2. Principles of Communications – H. Taub and D. Schilling, TMH, 2003.

REFERENCES
1. Electronic Communication Systems – Kennedy and Davis, TMH, 4th edition, 2004.
2. Communication Systems Engineering – John. G. Proakis and Masoud Salehi, PHI,
2nd Ed. 2004.