QUESTION PAPERS:-
SYLLABUS:-
UNIT I
Introduction
Overview of Communication system and Communication channels, Introduction to Analog Communication & Digital Communication technique,.
Amplitude Modulation
Amplitude modulation, Generation of AM waves, Demodulation of AM waves, DSBSC, Generation of DSBSC waves, Coherent detection of DSBSC waves, single side band modulation, generation of SSB waves, demodulation of SSB waves, vestigial sideband modulation (VSB).
UNIT II
Angle Modulation
Basic definitions: Phase modulation (PM) & frequency modulation (FM), narrow band frequency modulation, wideband frequency modulation, generation of FM waves, Demodulation of FM waves, frequency division (FDM) multiplexing. Noise Theory: Noise, Types of noise, Addition of Noise due to several sources in series and parallel, Noise sources. Equivalent Noise Bandwidth, Signal to Noise Ratio, Noise-Figure, Noise Temperature, Calculation of Noise Figure.
UNIT III
Pulse Modulation
Sampling theory, Aliasing effect , practical sampling , Aperture effect ,uniform and non uniform quantization, signal to quantization noise ratio, Companding, , pulse amplitude modulation (PAM), pulse time modulation, pulse code modulation, Time division (TDM) multiplexing, differential pulse code modulation (DPCM), delta modulation (DM), adaptive delta modulation.
UNIT IV
Digital Modulation
Amplitude, Frequency and phase shift keying, Differential phase shift keying, MSK QPSK and QAM modulation & detection, BER/SER calculation. Introduction to Information Theory: Measurement of Information, mutual information, Shannon’s Theorem, channel coding and channel capacity theorem. Huffman code, Lempel–ziv code, Error Control Coding: Parity codes, Hamming codes , Block codes, Syndrome decoding, CRC codes, Introduction to Convolutional coding.
SYLLABUS:-
UNIT I
Introduction
Overview of Communication system and Communication channels, Introduction to Analog Communication & Digital Communication technique,.
Amplitude Modulation
Amplitude modulation, Generation of AM waves, Demodulation of AM waves, DSBSC, Generation of DSBSC waves, Coherent detection of DSBSC waves, single side band modulation, generation of SSB waves, demodulation of SSB waves, vestigial sideband modulation (VSB).
UNIT II
Angle Modulation
Basic definitions: Phase modulation (PM) & frequency modulation (FM), narrow band frequency modulation, wideband frequency modulation, generation of FM waves, Demodulation of FM waves, frequency division (FDM) multiplexing. Noise Theory: Noise, Types of noise, Addition of Noise due to several sources in series and parallel, Noise sources. Equivalent Noise Bandwidth, Signal to Noise Ratio, Noise-Figure, Noise Temperature, Calculation of Noise Figure.
UNIT III
Pulse Modulation
Sampling theory, Aliasing effect , practical sampling , Aperture effect ,uniform and non uniform quantization, signal to quantization noise ratio, Companding, , pulse amplitude modulation (PAM), pulse time modulation, pulse code modulation, Time division (TDM) multiplexing, differential pulse code modulation (DPCM), delta modulation (DM), adaptive delta modulation.
UNIT IV
Digital Modulation
Amplitude, Frequency and phase shift keying, Differential phase shift keying, MSK QPSK and QAM modulation & detection, BER/SER calculation. Introduction to Information Theory: Measurement of Information, mutual information, Shannon’s Theorem, channel coding and channel capacity theorem. Huffman code, Lempel–ziv code, Error Control Coding: Parity codes, Hamming codes , Block codes, Syndrome decoding, CRC codes, Introduction to Convolutional coding.
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