Digital Communication [ECE Department]

Digital Communication [ECE Department]

Digital Communication

UNIT I : INFORMATION THEORY

1. Information Theory
2. Entropy
3. Discrete Memory less Channel
4. Channel Coding Theorem
5. Source Coding
6. Shannon-Fano Coding
7. Huffman Coding
8. Shannon-Hartley Theorem
9. Important Questions and Answers: Information Theory

UNIT II : WAVEFORM CODING AND REPRESENTATION

1. Linear Predictive Coding
2. Differential Pulse Code Modulation (DPCM)
3. Delta Modulation (DM)
4. Adaptive Delta Modulation
5. Important Short Questions and Answers: Waveform Coding

UNIT IIII BASEBAND TRANSMISSION AND RECEPTION

1. Properties of Line Codes
2. Power spectral density of unipolar NRZ line code
3. Manchester encoding
4. Nyquist Criterion for Zero-ISI
5. Inter symbol Interference
6. Eye Pattern
7. Equalising Filter
8. Important Short Questions and Answers: Baseband Transmission

UNIT IV : DIGITAL MODULATION SCHEME

1. Geometric representation of Signals
2. Generation and Coherent Detection of BPSK Signals
3. Power Spectrum or BPSK Modulated Signal
4. Frequency Shit Keying Modulation
5. Quadrature Phase Shift Keying (QPSK)
6. QAM(Quadrature Amplitude Modulation)
7. Important Short Questions and Answers: Digital Modulation Scheme

UNIT V : ERROR CONTROL CODING

1. Linear block and Hamming codes
2. Convolutional codes
3. Vitterbi Decoding Algorithm
4. Important Short Questions and Answers: Error Control Coding

EC6501 Regulation 2013 Digital Communication

UNIT I : SAMPLING and QUANTIZATION

1. Sampling theorem for Low pass signals
2. Aliasing and signal reconstruction
3. Quantization
4. Types of Quantizers: Uniform and Non uniform quantization
5. Quantization Noise and Signal-to-Noise
6. Companding of Speech signal
7. Advantages of Non Uniform Quantization
8. Pulse code Modulation(PCM)
9. Time-Division Multiplexing (TDM)
10. Important Short Questions and Answers: Sampling & Quantization

UNIT II : WAVEFORM CODING

1. Linear Predictive Coding
2. Differential Pulse Code Modulation (DPCM)
3. Delta Modulation (DM)
4. Adaptive Delta Modulation
5. Important Short Questions and Answers: Waveform Coding

UNIT III : BASEBAND TRANSMISSION

1. Properties of Line Codes
2. Power spectral density of unipolar NRZ line code
3. Manchester encoding
4. Nyquist Criterion for Zero-ISI
5. Inter symbol Interference
6. Eye Pattern
7. Equalising Filter
8. Important Short Questions and Answers: Baseband Transmission

UNIT IV : DIGITAL MODULATION SCHEME

1. Geometric representation of Signals
2. Generation and Coherent Detection of BPSK Signals
3. Power Spectrum or BPSK Modulated Signal
4. Frequency Shit Keying Modulation
5. Quadrature Phase Shift Keying (QPSK)
6. QAM(Quadrature Amplitude Modulation)
7. Important Short Questions and Answers: Digital Modulation Scheme

UNIT V : ERROR CONTROL CODING

1. Linear block and Hamming codes
2. Convolutional codes
3. Vitterbi Decoding Algorithm
4. Important Short Questions and Answers: Error Control Coding