An accurate indoor propagation analysis for Wi-Fi antenna embedded in a commercial TV set

Abstract

This paper presents an accurate analysis technique to estimate indoor propagation performance of a wireless local area network (WLAN) module in a commercial TV set. In particular, a hybrid technique is proposed which uses ray tracing method combined with the finite difference time domain (FDTD) method. FDTD method in a specific source regions and ray tracing method is applied for the rest of the area. The FDTD simulation is used for analyzing an accurate WLAN source region which consists of a WLAN module in the TV set and a concrete wall. The simulation results are compared to measurements for a number of cases. The correlation coefficients between measurement and simulation of the hybrid method are 0.84 for a line of sight (LOS) route and 0.83 for a non line of sight (NLOS) route which is higher than 0.56 and 0.73 based on conventional ray tracing method. This comparison shows that the hybrid model provides higher precision.