Digital Communication

UNIT I : INFORMATION THEORY

👉 Entropy 

👉 Discrete Memory less Channel
👉 Channel Coding Theorem
👉 Source Coding
👉 Shannon-Fano Coding
👉 Huffman Coding
👉 Shannon-Hartley Theorem

UNIT II : WAVEFORM CODING AND REPRESENTATION

👉 Linear Predictive Coding
👉 Differential Pulse Code Modulation (DPCM)
👉 Delta Modulation (DM)
👉 Adaptive Delta Modulation

UNIT IIII BASEBAND TRANSMISSION AND RECEPTION

👉 Properties of Line Codes
👉 Power spectral density of unipolar NRZ line code
👉 Manchester encoding
👉 Nyquist Criterion for Zero-ISI
👉 Inter symbol Interference
👉 Eye Pattern
👉 Equalising Filter

UNIT IV : DIGITAL MODULATION SCHEME

👉 Geometric representation of Signals
 👉Generation and Coherent Detection of BPSK Signals

👉 Power Spectrum or BPSK Modulated Signal
👉 Frequency Shit Keying Modulation
👉 Quadrature Phase Shift Keying (QPSK)
👉 QAM(Quadrature Amplitude Modulation)

UNIT V : ERROR CONTROL CODING

👉 Linear block and Hamming codes
👉 Convolutional codes
👉 Vitterbi Decoding Algorithm

SAMPLING and QUANTIZATION

👉 Sampling theorem for Low pass signals
👉 Aliasing and signal reconstruction
👉 Quantization
 👉Types of Quantizers: Uniform and Non uniform quantization

👉 Quantization Noise and Signal-to-Noise
👉 Companding of Speech signal
 👉Pulse code Modulation(PCM)

 👉Time-Division Multiplexing (TDM)