B.E in Information Technology

INFORMATION THEORY AND
COMMUNICATION:

UNIT-I
Digital communications: Introduction, digital ratio, digital amplitude modulation, frequency
shift keying, phase shift keying, quadrature amplitude modulation, bandwidth efficiency,
carrier recovery.
*UNIT-II
Probability random variable and stochastic processes, review of probability theory, random
variable, probability density and distribution function, random process, periodic processes,
stationary processes, auto correlation cross correlation application to signal analysis.
*UNIT-III
Data communications: history and communications, circuits, data communications, error
control, synchronization, data communication, hardware, Data communication protocol and
Network configuration:
Open system interconnection, synchronous protocol
*UNIT-IV
Digital transmission: PCM,
Differential pulse code modulation, pulse transmission, signal power in binary digital signal.
Multiplexing: time division multiplexing, TI digital carrier system, CCITT time-division
multiplexed carrier system.
UNIT-V
Shenon limit for information theory, channel capacity and discrete and continuous channels,
error control coding, Hamming distance, linear block codes, CRC, convolutional codes.