JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

UNIT - I

Basic Concepts of Data Communications, Interfaces and Modems Data Communication Networks, Protocols and Standards, UART, USB, I2C, I2s, Line Configuration, Topology, Transmission Modes, Digital Data Transmission, DTE-DCE interface, Categories of Networks – TCP/IP Protocol suite and Comparison with OSI model.

UNIT - II

Error Correction: Types of Errors, Vertical Redundancy Check (VRC), LRC, CRC, Checksum, Error Correction using Hamming code Data Link Control: Line Discipline, Flow Control, Error Control Data Link Protocols: Asynchronous Protocols, Synchronous Protocols, Character Oriented Protocols, Bit-Oriented Protocol, Link Access Procedures.

UNIT - III

Multiplexing: Frequency Division Multiplexing (FDM), Time Division Multiplexing (TDM), Multiplexing Application, DSL. Switching: Circuit Switching, Packet Switching, Message Switching.

UNIT - IV

Local Area Networks: Ethernet, Other Ether Networks, Token Bus, Token Ring, FDDI. Metropolitan Area Networks: IEEE 802.6, SMDS Networking and Interfacing Devices: Repeaters, Bridges, Routers, Gateway, Other Devices.

UNIT - V

Multiple Access Techniques Random Access, Aloha- Carrier Sense Multiple Access (CSMA)- Carrier Sense Multiple Access with Collision Avoidance (CSMA/CA), Controlled Access, Reservation, Polling, Token Passing, Channelization, Frequency- Division Multiple Access (FDMA), Time - Division Multiple Access (TDMA), Code - Division Multiple Access (CDMA).

TEXT BOOKS:

• 1. Data Communication and Computer Networking - B. A.Forouzan, 2nd Ed., 2003, TMH.
• 2. Advanced Electronic Communication Systems - W. Tomasi, 5 ed., 2008, PEI.

REFERENCE BOOKS:

• 1. Data Communications and Computer Networks - Prakash C. Gupta, 2006, PHI.
• 2. Data and Computer Communications - William Stallings, 8th ed., 2007, PHI. R16 B.TECH ECM.
• 3. Data Communication and Tele Processing Systems -T. Housely, 2nd Ed, 2008, BSP.
• 4. Data Communications and Computer Networks- Brijendra Singh, 2nd ed., 2005, PHI. R16 B.TECH ECM.