Indoor Radio Wave Propagation With Ray Tracing Technique
Wireless Local Area Networks (WLANs) are nowadays the most widely used indoor wireless networks that found a large variety of wireless applications. The performance of 802.11b wireless LANs is well understood for indoor environments. The purpose of this study is to present a new radio wave propagation model especially for L-shape of corridors based on original free space model using ray tracing technique. Using this model, the received signal strength values can be estimated with respect to the building parameters and additional reflecting rays from the side walls, opposite wall, floor and roof. All possible experiments are carried out at a carrier frequency range of 2.4GHz with the help of TP-LINK TL-WR1043N router with 8dBi omni-directional antenna, and 3dBi laptop with signal analyzing software called inSSIDer in indoor Non-line-of-sight (NLOS) scenarios. This proposed system presents the comparison results of experimental data and estimating data with the help of Matlab programming language.
Index Terms- 802.11b Wireless LANs, radio wave propagation, free space model, ray tracing technique, Non-line-of-sight (NLOS).