Analysis of Path Loss through the Partitions in Indoor Propagation

Abstract: The indoor propagation modelling is dependent on the types of building layout designs and construction materials. The multiwall and multifloor (MWF) model operating at 2.4 GHz is applied to analyse the prediction of the received signal strength indicator (RSSI) and path loss values due to the effects of floors and walls. The experiments were measured in four corridors through multiple floors and the consecutive rooms through multiple walls with different positions of transmitter and receiver for multifloored building of Mandalay Technological University. In this research, the proposed MWF model has been evaluated based on the existing MWF model which includes the penetration loss through the brick and glass walls based on the Fresnel Transmission Coefficient (FTC). These coefficients are considered dependent on the different heights of the transmitter and receiver, the distance between the walls, the widths of the room and the types of the walls. According to the comparison of the experimental, theoretical and evaluated results, the differences of the path loss values between the evaluated and theoretical results are at least 2 dB at 5 m, 15 m and at most 7 dB at 10 m, 20 m. Therefore, the path loss values through two floors are more increased than the path loss values in other situations which are same floor and through one floor due to the partitions in multifloored building.

Keywords: Brick and Glass Walls, Indoor Propagation, Multifloored Building, Multiwall and Multifloor Model, Path Loss.