Electronics & Telecommunication Engineering(6th Sem.)
Communication System – II BOOKS__________________________________!. Communication Systems Text Book 20/04/2012
Shared by: Suman Patel(OPJET)
Communication System – II__________________________________1. Unit-1
2. Unit-2
3. Unit-3
4. Unit-4
5. Unit-5
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Communication System – II SyllabusUNIT – I Pulse Modulation: Sampling theorem, sampling and reconstruction using Impulse train; Sampling and reconstruction using pulse train; Basic principles of PAM, PWM and PPM, their generation and detection. TDM, comparison of TDM with FDM; Typical multiplexed systems (onlyT1 system); Signal –to-noise ratio calculations for PAM, PWM and PPM and their comparisons. UNIT-II Pulse Code Modulation: Pulse code modulation, generation and detection of PCM, quantization (linear), companding, A-Law and -Law, differential PCM; Delta modulation, Adaptive delta modulation, TDM-PCM, comparisons ( PCM, DM, DPCM, ADM). UNIT-III Digital Modulation Techniques: Fundamentals of Binary ASK, PSK and FSK; generation and detection of BASK, BPSK and BFSK; Fundamentals of QPSK and DPSK , generation and detection of QPSK and DPSK; Definition of MSK, M-Ary PSK signaling schemes, equalization principles; Transfer function of Optimum Filter and Matched Filter; Error Probability of various modulation technique (only BFSK). . UNIT – IV Spread Spectrum Modulation: Noise in PCM-DM, Calculation of S/N for PCM and DM(for Quantization noise); Concept of Spread Spectrum technique. DS-SS and basic concept of Frequency hopping Spread Spectrum technique, CDMA. UNIT – V Information Theory and Coding: Information, Information rate, mutual information; Marginal, conditional and joint Entropies; Channel capacity, efficiency; Shannon‟s limit .Discrete Communication channel (only BSC & BEC); Shannon‟s limit, Continuous communication channel, channel with finite memory, General principles of coding, necessary and sufficient condition for noiseless coding, Shannon‟s noiseless coding theorem, Coding efficiency, Shannon-Fano and Huffman coding; Error control, Hamming codes, Design of Linear block codes and 2-bit convolutional code only(constraint length N=3, modulo-2 adder v=2); Definition of Cyc lic Redundancy codes, majority logic coding , two dimensional coding, algebraic coding. |
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