Wireless channel characterization for a home indoor propagation topology at 2.4 GHz

In this work, a site-specific validation of path loss models for a home indoor propagation topology was conducted. An 802.11g Wi-Fi system operating at 2.4 GHz was examined and extensive RF measurements were performed, at a residence in downtown Patras, Greece, including multiple floor measurements in order to validate floor penetration losses and the reliability of path loss models for multiple wall and floor schemes. The Multi-Wall-Floor path loss model was found to be the most precise for both same-floor and multiple floor measurements. The shadowing phenomena were examined and confirmed to follow the log-normal distribution, via goodness-of-fit method. Their impact on the reliable estimation of Outage Probability was studied, and a recently published novel empirical method for the dynamic, site-specific calculation of shadowing deviation (in dB) was applied for the topology at hand. Results proved that this method, based on the Multi-Wall-Floor path loss model, provides a more reliable, error-robust calculation of shadowing deviation that complies with the log-normal nature of shadowing phenomena in an obstructed propagation path. Finally, the attenuation over distance was calculated, on the basis of the linear attenuation model.