Digital Communication (IT-5004) - B.E RGPV CBCS & CBGS Scheme Notes -->

## Syllabus

UNIT 1:
Digital signal, Quantization, Quantization error, Pulse code modulation, signal to noise ratio, Eye pattern, Companding, Data rate and Baud rate, Bit rate, multiplexed PCM signal, Differential PCM (DPCM), Delta Modulation (DM), limitations of DM and Adaptive Delta Modulation (ADM), comparison of various systems.

UNIT 2:
Digital modulations techniques, Generation, detection, equation and Bandwidth of amplitude shift keying (ASK) Binary Phase Shift keying (BPSK), Differential phase shift keying (DPSK), offset and non offset quadrature phase shift keying (QPSK), M-Ary PSK, Binary frequency Shift Keying (BFSK), M-Ary FSK Quadrature Amplitude modulation (QAM), MODEM,

UNIT 3:
Information theory and coding- Uncertainity, Unit of Information, entropy, Rate of information, Joint & Conditional entropy, Mutual information, channel capacity, Shannon’s Theorem, Continuous channel, Capacity of a Gaussian channel: Shannon Hartley Theorem, Bandwidth S/N ratio trade off.

UNIT 4:
Coding efficiency, Shanon,Fano and Huffman coding, Error control coding-Block codes, parity check codes, linear block codes, cyclic codes, Convolutional codes.

UNIT 5:
Data communication concepts – Data transmission – Parallel and serial transmission, synchronous, and Asynchronous transmission, Simplex,half duplex and fullduplex , unipolar and polar line codes, Nonreturn to zero codes, return to zero codes, bipolar line codes, bauds, modem, Line configurations-Point to point and point to multipoint configuration.

• Unit 1
• Unit 2
• Unit 3
• Unit 4
• Unit 5

## Books Recommended

1. Singh & Sapre, “Communication System”, TMH
2. Taub & shilling, “Communication System”, TMH
3. Simon Haykins, “Communication System”, Willy
4. Hsu, “Analog and digital communication (Schaum)”, TMH
5. B.P. Lathi, “Modern Digital and analog communication system”,
6. Wayne Tomasi, “Electronic Communication system’.
7. Forouzan, “Data communication and networking”, TMH 4th edition
8. Prakash C Gupta, “Data communication and Computer Networks”,PHI Learning.
9. Analog & Digital Communication System; Discovery Press.
10. Frank R. Dungan, “Electronic Communication System”, Thomson/Vikas.

## List of Experiments

1. Study of PCM transmitter and receiver.
3. Case Study of digital interface RS-232.
4. Case Study of Synchronous and asynchronous transmission.
5. Case Study of various multiplexing techniques.
6. Case Study of Parallel and serial transmission.
7. Study of NRZ and RZ Codes.

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