Digital Communication and Networking

SYBSC (Comp. Sci.) Semester -III

Paper-II, Digital Communication and Networking, ELC- 232
Notes of Digital Communication and Networking.
Chap. 1 Introduction to Electronics Communication.
Chap. 2 Modulation and Demodulation.
Chap. 3 Multiplexing Spectrum spreading and media access control.
Below here 3 chapter notes are provided.

Chap. 1 Introduction to Electronics Communication.

UNIT 1: Introduction to Electronic Communication (9)
Introduction to Communication: Elements of Communication system, types of noise sources,
Electromagnetic spectrum, signal and channel bandwidth,
Types of communication: simplex, half duplex, full duplex, baseband and broadband,
Serial communication: asynchronous and synchronous,
Information Theory: Information entropy, rate of information (data rate, baud rate), channel capacity, Nyquist theorem, Signal to noise ratio, Noise Figure,
Shannon theorem,
Error handling codes: Necessity, Hamming code, CRC

Chap. 2 Modulation and Demodulation.

UNIT 2: Modulation and Demodulation (5)
Introduction to modulation and demodulation: Concept and need of modulation and demodulation,
Digital Modulation techniques: Pulse Code Modulation (PCM), FSK, QPSK, QAM.

Chap. 3 Multiplexing Spectrum spreading and media access control.

UNIT 3: Multiplexing, Spectrum Spreading and Media Access Control (12)
Multiplexing techniques:
Frequency division multiplexing, wavelength division multiplexing, Time division multiplexing
Spread Spectrum techniques:
Frequency hopping Spread Spectrum, Direct Sequence Spread Spectrum
Media Access Control (MAC):
Random Access Protocol: ALOHA, CSMA, CSMA/CD, CSMA/CA,
Controlled Access Protocols: Reservation, Polling, Token passing,
Channelization Protocols: FDMA, TDMA, CDMA.

UNIT 4: Computer Networking (10)
Introduction to computer networks

Types of networks : LAN, MAN, WAN, Wireless networks, Switching, Internet,
Network topology : point to point, Star, Ring, Bus, Mesh, Tree, Daisy Chain, Hybrid
Network devices : Repeater, Switch, Networking cables, Router, Bridge, Hub, Brouter, Gateway.
Wired LANs:- Ethernet: Ethernet protocol, standard Ethernet, 100 MBPS Ethernet, Gigabit Ethernet, 10 Gigabit Ethernet,
Computer network model: OSI and TCP/IP.

Recommended books:

1.Communication Electronics: Principles and Applications, Frenzel, Tata Mc Graw Hill publication, 5th edition.
2. Data Communication and Networking, Forouzan, Mc Graw Hill publication, 5th edition 3. Computer Networks, Tanenbaum, pHI publication, 5th edition.

Chapter Name and Download link

Chap. 1 Introduction to Electronics Communication.
Chap. 2 Modulation and Demodulation.
Chap. 3 Multiplexing Spectrum spreading and media access control.

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Notes of Digital Communication and Networking