Signal Representation –
Low pass representation of bandpass signals, Low pass representation of bandpass random process [Text 1 , Chapter 2: 2.1, and 2.9 only]
Modulation:
Representation of digitally modulated Signals , Modulation Schemes without memory (Band Limited Schemes - PAM,BPSK,QPSK,MPSK,MQAM, Power Limited Schemes – FSK,MFSK, DPSK,DQPSK), modulation schemes with memory (Basics of CPFSK and CPM – Full Treatment of MSK), Transmit PSD for Modulation Schemes. (Section 3.4 [Text 1 , Chapter 3: 3.1, 3.2 and 3.3]
Demodulation -
Vector Channel, Vector Channel +AWGN, Performance parameters, Optimum Coherent Detection for power limited and Bandlimited schemes, Optimal Coherent detection for schemes with memory, Optimal Non – Coherent detection for schemes without and with memory (FSK, DPSK,DQPSK), Comparison of detection schemes. [Text 1, Chapter 4: 4.1, 4.2.- 4.2.2, 4.3, 4.4, 4.5.1, 4.5.2, 4.5.5 and 4.6]
Bandlimited Channels:
Bandlimited channel characterization, signalling through band limited linear filter channels, Sinc, RC, Duobinary and Modified Duobinary signaling schemes, Optimum receiver for channel with ISI and AWGN.
Linear Equalizers:
Zero forcing Equalizer, MSE and MMSE, Baseband and Passband Linear Equalizers. Performance of ZFE and MSE.(Excluding 9.4-3, 9.4-4)[Text 1, Chapter 9: 9.1, 9.2 - 9.2.1, 9.2.2, 9.2.3, 9.3-9.3.1, 9.3.2 and 9.4
Non-Linear Equalizers:
Decision - feedback equalization, Predictive DFE, Performance of DFE.[Text 1, Chapter 9: 9.5: 9.5-1 only]
Adaptive equalization:
Adaptive linear equalizer, adaptive decision feedback equalizer, Adaptive Fractionally spaced Equalizer (Tap Leakage Algorithm), Adaptive equalization of Trellis - coded signals.[Text 1, Chapter 10: 10.1, 10.1-1, 10.1-2, 10.1-3, 10.1-6,10.1-7, 10.2, 10.3]
Spread spectrum signals for digital communication:
Model of spread spectrum digital communication system, Direct sequence spread spectrum signals, some applications of DS spread spectrum signals , generation of PN sequences, Frequency hopped spread spectrum signals , Time hopping SS, Synchronization of SS systems. [Text 1, Chapter 12: 12.1, 12.2 (except 12.2-1), 12.2-2, 12.2-5, 12.3, 12.4, 12.5]