GSM in air interface

Digital mobile communication system has now become possible around the world with the introduction of GSM at any time, any town, and any country and anywhere across the globe. The development of GSM started in 1982 by a group of 26 European national phone companies with its frequency around 900Mhz and varies to 1800Mhz and 1900Mhz. It is developed in Europe with a market of million subscribers worldwide and represents an important economic source for the countries like Sweden, Finland and other develop countries. This thesis describes the measurement of signal strength in GSM system especially in air interface for two different cases: urban area and rural area. The measurement is done using software called TEMS Investigation provided by Ericsson. It is a real time air interface test tool for GSM and GPRS diagnostics. It also discussed the development of simple program to predict site planning using Visual Basic. This thesis also discussed the characteristics of mobile communication medium and its effects on mobile radio performance including propagation loss and multipath fading.