Digital Communication Tutorial : dc analog to digital, advantages of digital communication, dc pulse code modulation, dc sampling, sampling rate, nyquist rate, sampling theorem, aliasing, scope of fourier transform, dc quantization, quantizing an analog signal, types of quantization, dc differential pcm, dpcm transmitter, dpcm receiver, dc delta modulation, delta modulation, delta modulator, delta demodulator, adaptive delta modulation, dc techniques, linear predictive coding, multiplexing, types of multiplexers, analog multiplexing, digital multiplexing, regenerative repeater, dc line codes, unipolar signaling, polar signaling, bipolar signaling, power spectral density, dc data encoding techniques, encoding techniques, non return to zero, bi-phase encoding, dc pulse shaping, dc digital modulation techniques, dc amplitude shift keying, ask modulator, ask demodulator, dc frequency shift keying, dc phase shift keying, dc quadrature phase shift keying, dc differential phase shift keying, dc m-ary encoding, dc information theory, dc source coding theorem, dc channel coding theorem, dc error control coding, dc spread spectrum modulation.