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Development of Radio Wave Propagation Model in Indoor Non-Line-of-Sight (NLOS) Scenario

Thet War Soe, Aung Myint Aye


To improve the performance of an indoor WLAN, it is very important to estimate specific received signal strength based on experimental and predicting data. As the design of building layouts and constructed building materials modernize and are complex, it is difficult to estimate the received signal strength values according to those building structure. For this reason, this research develops a new radio wave propagation model for  indoor Non-Line-of-Sight (NLOS) scenarios with the help of TP-LINK router .In order to develop the proposed model, the free space model is modified by considering the influence of corridor conditions on each floor based on ray tracing technique at a carrier frequency range of 2.4GHz. Using this model, indoor received signal strength values can be estimated according to the geometrical plan in modeling of indoor radio wave propagation. The performance comparison of channel capacity is implemented with various frequency ranges using MATLAB programming language. The recommendation results from experimental data and proposed model will help wireless network system designers in optimization overall cost effect.


WLAN; Non-Line-of-Sight (NLOS); free space model; ray tracing technique; received signal strength; channel capacity;

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