Investigation of indoor WIFI radio signal propagation

The purpose of this study is to analyze the WIFI signal propagation, using IEEE 802.11g radio interface. In most cases, the WIFI radio interface is installed by the people who are not familiar with the system, especially when dealing with signal propagation at high frequency. Hence, there is a need to understand this signal behavior particularly in indoor scenarios. This study focuses indoor signal measurement and prediction. The measurement and prediction of this signal propagation is taken at the campus environment of University Kuala Lumpur British Malaysian Institute. Signals were monitored using a fixed Cisco Aironet 1200 Series access point (AP) and NET STUMBER software runs on portable computer. The Log Distance path loss model is used as the mathematical analysis. The measured data is compared with mathematical model to obtain the new possible path loss coefficient, for 802.11g radio interface.