February 26, 2010



VI Semester


Part - A

Unit - 1

Digital Transmission fundamentals: Definition of information. Digital Representation of Information, Block-Oriented information, Stream information. Why digital communication, comparison of Analog and digital transmission, Basic Properties of Digital transmission Systems; Digital Representation of Analog Signals: Bandwidth of Analog Signals, sampling of an Analog signal, digital Transmission of Analog Signals. Characteristics of communications channels: frequency domain characterization. Time Domain characterization. Fundamental limits in digital Transmission, The Nyquist signaling rate, The Shannon channel capacity.

7 Hours

Unit - 2

Line coding Modems and digital modulation: binary phase Modulation QAM and Signal constellations, telephone modem standards, properties of media and Digital transmission systems: twisted pair, coaxial cable, optical fiber, radio transmission, Infrared light. Error detection and correction: Error Detection, Two-dimensional parity Checks, Internet checksum, polynomial codes, Standardized polynomial codes, Error detecting capability of a polynomial code.

7 Hours

Unit - 3

Circuit switching networks: Multiplexing: FDM, TDM, WDM, SONET, SONET multiplexing, SONET frame structure. Transport networks: SONET networks, optical Transport networks, circuit switches, space division switches, Time division switches, the telephone network, transmission facilities, end to end digital services.

6 Hours

Unit - 4

Communication Networks and Services: Evolution of Network architecture and Services: Telegraph Networks and Message Switching, Telephone Networks and Circuit Switching, The Internet, Computer Networks and Packet Switching.

6 Hours

Part - B

Unit - 5

Applications and Layered Architectures: Examples of Protocols, Services and Layering: HTTP, DNS and SMTP. TCP and UDP Transport Layer Services, The OSI Reference Model: The seven layer OSI Reference Model, Unified View of Layers, Protocols and Services. Overview of TCP/IP Architecture: TCP/IP Architecture, TCP/IP Protocol: How the layers work together. Protocol Overview, Application layer protocols andTCP/IP Utilities.

7 Hours

Unit - 6

Data Link Layer: Peer-to-Peer Protocols: Peer-to-Peer Protocols and Service Models; ARQ Protocols and Reliable Data Transfer Service: Stop-and-Wait ARQ, Go-Back-N ARQ, Selective Repeat ARQ, Other Peer-to-Peer Protocols.

6 Hours

Unit - 7

Data Link Controls: Framing, Point to point Protocol, HDLC Data link Control, Link Sharing using Packet Multiplexers: Statistical Multiplexing, Speech Interpolation and the Multiplexing of pocketsize Speech.

6 Hours

Unit - 8

Medium access control protocols and LAN: The Medium Access Control Protocols, Multiple Access Communications, Random Access: ALOHA, Slotted ALOHA, CSMA, CAMA-CD, Scheduling Approaches to Medium Access Control: Reservation Systems, Polling, Token-Passing Rings; Channelization, FDMA, TDMA, CDMA. High speed Digital Access & connecting Devices. DSL: DSL Technology, cable modems, connecting devices: Repeaters, Hubs, Bridges, Two-layer switch, router and three layer switches

7 Hours

Text Books:

  1. Communication Networks- Alberto Leon- Garcia and India Widjaja Fundamental Concepts and Key Architectures, Tata McGraw-Hill 2nd edition.
  2. Data Communications and Networking- Behrouz A. ForouzaTata McGraw-Hill, 3rd Edition.

Reference Books:

  1. Data and Computer Communication- William Stallings, Fifth Edition, Pearson Education/ Prentice Hall India.
  2. Understanding Data Communications and Networks- William A. Shay, 2nd Edition, Thomson.
  3. Data Communications and Networks- by author Codbole Tata McGraw-Hill 2002.
  4. Computer Communications and Networking Technologies- Micael A Gallo & William M. Handcock 2003 Edition, Thomson.



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