Passband digital systems: Quantization, Pulse code modulation (PCM), Delta modulation (DM). Line coding/decoding for digital transmission. Noise analysis in PCM and DM systems. Bandpass digital systems: signal model and signal detection of ASK, PSK, DPSK, FSK and QAM. Digital signaling over band limited channels with inter-symbol interference (ISI) and additive Gaussion noise: equalization and pulse shaping for ISI. Error control coding: block coding/decoding and Coding Gain.