With effect from the academic year 2015-2016
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CS 256 |
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DATA COMMUNICATIONS |
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Instruction |
4 |
Periods per week |
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Duration of University Examination |
3 |
Hours |
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University Examination |
75 |
Marks |
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Sessional |
25 |
Marks |
Course Objectives:
- 1.To understand the basics of data transmission, transmission media, data communications system and its components.
- 2.To describe various encoding and modulation schemes, various data link protocols for flow control, error detection and correction.
- 3.To understand different types of multiplexing, spread spectrum techniques, Ethernet, services of WLANs and Bluetooth.
UNIT-I
Introduction: Communication model and Modulation Techniques (AM, FM and PM), Data Communication networking, Protocols and Architecture, Standards.
Data Transmission: Concepts and Terminology, Analog and Digital Transmission, Transmission Impairments, Transmission media.
Data Encoding: Digital Data Digital Signals, Digital Data-Analog Signals, Analog Data-Digital Signals, Analog Data-Analog Signals.
UNIT-II
Data Communication Interface: Asynchronous and Synchronous Transmission, Line Configuration, Interfacing.
Data Link Control: Flow Control, Error Detection, Error Control, HDLC, Other Data link Control Protocols, Performance Issues.
UNIT - III
Multiplexing & Switching: Frequency Division Multiplexing, Wavelength Division Multiplexing, Synchronous Time Division Multiplexing, Statistical Time Division Multiplexing. Asymmetric Digital Subscriber Line, xDSL. Circuit Switching, Packet Switching & Frame Relay. ATM : Architecture, Logical Connection, ATM Cells, Transmission of ATM cells.
UNIT -IV
Ethernets: Traditional Ethernet Topologies and Transmission Media, LAN protocol architecture, MAC sub layer, CSMA/CD, Physical Layer, Bridged, Switched and Full Duplex Ethernets. Fast Ethernet: MAC sub Layer, Physical layer, Gigabit Ethernet: MAC sub Layer, Physical Layer
UNIT –V
Cellular Wireless Networks: Principles of Cellular Networks, First Generation Analog, Second Generation CDMA and Third Generation Systems.
Wireless LANs: Overview, Wireless LAN Technology, IEEE 802.11 Architecture and Services, IEEE 802.11 Medium Access Control, IEEE 802.11 Physical Layer.
Bluetooth & Zigbee: Architecture, Layers and Protocols.
Suggested Reading:
- 1.William Stallings, “Data and Computer Communication”, 8th Edition, Pearson Education, Asia-2004.
- 2.Behrouz A. Forouzan, “Data Communications and Networking”, 4th Edition, Tata McGraw Hill, 2006.
- 3.Simon Haykins “Communication Systems”, 2nd Edition, John Wiley & Sons
- 4.Drew Gislason “Zigbee Wireless Networking” Elsevier Published: August