EC-502 · DIGITAL COMMUNICATION/Official Syllabus
DIGITAL COMMUNICATION (EC-502) - Official Syllabus
1
Unit 1
Sampling theorem for low pass and band pass signals
- Sampling theorem for low pass and band pass signals
- Ideal sampling
- Natural sampling
- Flat top sampling
- crosstalk
- aliasing
- time division multiplexing
- PAM
- PWM
- PPM their generation and detection
2
Unit 2
Pulse code modulation
- Pulse code modulation
- Quantization
- quantization noise
- companding
- Inter symbol interference
- Eye pattern
- Delta and adaptive modulation
- Encoding techniques: On-Off signaling
- Polar signaling
- RZ signaling
- Bipolar signaling
- AMI
- Manchester code
- Differential encoding their advantage and disadvantages
3
Unit 3
Band pass data transmission
- Band pass data transmission: ASK
- Binary phase shift keying (BPSK)
- QPSK
- DPSK
- coherent and non coherent BFSK
- minimum shift keying
- QAM
- Concept of M-ary PSK and M-ary FSK
- Spectral properties of QPSK and MSK
4
Unit 4
Matched filter and correlator detector
- Matched filter and correlator detector
- Gram Schmidt orthogonalization procedure and concept of signal space for the computation of probability of error
- calculation of error probability for BPSK, QPSK, QAM and coherent BFSK
- comparison of different modulation techniques
5
Unit 5
Concept of information theory
- Concept of information theory
- entropy
- information rate
- channel capacity
- Shannon’s theorem
- Shannon Hartley theorem
- BW and signal to noise ratio trade off
- sources encoding
- extension of zero memory source
- Error correcting codes: linear block codes
- cyclic codes: encoder and decoder circuits
- burst error correcting codes
- concept of convolution codes
Reference Books
- Communication Systems — Simon Haykins — Wiley
- Principle of Communication Systems — Taub, Schilling — Tata McGraw-Hill
- Communication Systems — Singh, Sapre — Tata McGraw-Hill
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