7EC3 WIRELESS COMMUNICATION

UNIT 1 : PROPAGATION PHENOMENA -

Fundamentals of fading, Multipath channels, Spread

Spectrum signals: Direct-sequence spread spectrum signals, p-n sequences, Frequency-hopped spread

spectrum signals, Code-division multiplexing.

UNIT 2 : LINE OF SIGHT MICOWAVE COMMUNICATION

-  Link Engineering, Frequency planning, Free

space loss, Fresnel zone clearance bending of radio beam, Effective earth radius, Building blocks of

Transmitter & Receiver.

UNIT 3 : MULTIPLE ACCESS TECHNIQUES -

FDMA, TDMA and  CDMA with reference to mobile radio

and satellite systems. TDMA based networks. CDMA based networks,

UNIT 4 : CELLULAR WIRELESS NETWORKS-

, GSM: Introduction, overview of the GSM systems, GSM

codec, channel coding and interleaving, radio like control. Cordless systems and WLL, Mobile IP,

Wireless access protocol. Wireless LAN’s: Technology, IEEE 802.11 standards and Blue tooth.

Broadband Wireless 802.16

UNIT 5 : SATELLITE COMMUNICATION -

Elements of satellite communication: Frequency bands,

Transmission and multiplexing. Modulation, Multiple access. Satellite orbit and description- orbital period

and velocity, effects of orbital inclination, Azimuth and elevation, Coverage angle and slant range,

Geostationary orbit, Satellite description. Earth Station  antenna, high-power amplifier, low-noise

amplifier, up converter, down converter, monitoring and control, reliability. Satellite Link: basic link

analysis,