CELLULAR COMMUNICATION

• The cellular concept is a system level idea which makes use of multiple low power transmitters (100 W or less), each providing coverage to a small portion of the service area.

• In cellular system an area is divided into large number of cell, each one served by a base station

GSM

• Global System for Mobile Communication

• European Standard for cellular communication

• Developed by ETSI( European Telecommunication Standards Institute)

• In 1990

• Considered as 2nd Generation mobile phone system

• GSM Services– Data Services– Tele services– Supplementary Services

GSM Block diagram