DATA AND COMMUNICATION NETWORKS
UNIT-I
A
communications model - Data Communications - Data Communications Networking -
computer communication architecture - standards Data Transmission - Concepts
and terminology - Analog and Digital - Transmission - Transmission Impairments
- Transmission media.
UNIT-II
Data encoding - Digital
data Digital signals ,Digital data Analog signals,, Analog data Analog signals
Data Communications Interface : Asynchronous and synchronous Transmission -
Line configuration - Interfacing.
UNIT-III
Data link control: Flow
controls - Error Detection - Error Control - High Level Data Link Control
(HDLC) - MULTIPLEXING - Frequency Division multiplexing - Synchronous time -
Division multiplexing - Statistical time division multiplexing.
UNIT-IV
Circuit switching:
Circuit switching networks switching concepts - Routing in circuit switched
networks - Packet switching principles - Routing in packet switching -
Congestion control.
UNIT-V
Frame relay: Frame
relay Protocol Architecture - Frame relay call control user data transfer -
Networks functions - Congestion control.
ASYNCHRONOUS
TRANSFER MODE (ATM) Protocol Architecture - ATM logical connection - ATM Cells
- Transmission of ATM cells - ATM adaption layer - Traffic and congetion control.
Text Books
1.
William Stallings, Data and Computer Communications Fifth Edition , Prentice
Hall of India, 1997.
2.
Forouzan: Introduction to Data Communication & Networking, McGraw-Hill,
1998.
Reference
Books
1.
Ulysess D. Black Data Communications and Distributed Networks Third Edition ,
1997. Prentice Hall of India.
2. Prakash
C.Gupta,Data Communications, Prentice Hall of India,1996.
