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The knowledge of wireless propagation channel behavior is essential for coverage determination and for radio network planning in urban environments. In this paper the ability of deterministic, empirical and physical models to predict the received power is investigated. A few test drives were performed to measure the received power in two different urban environments, in order to estimate the prediction...
For wireless communication system in urban area, received signal level is important in determining the coverage of the system. This paper presents a model to predict the field strength level on streets inside a campus with steep terrain due to a UTMS base station at 949.2 MHz on rooftop using 3D ray tracing method. Measurements is conducted using isotropic antenna to calibrate the transmit power of...
In this article, we propose a new hybrid modeling method for indoor-to-outdoor radio coverage prediction. The proposed method is a combination of a ray-optical channel modeling approach and the frequency domain ParFlow method. While the former is widely used for modeling outdoor propagation environments, the latter is computationally efficient and accurate for modeling indoor environments.
The effect of building layout in street-cell model on path loss is investigated by using shooting and bouncing rays (SBR) method. A comparison of path loss between measurement and simulations of two different models confirms that only buildings along measurement path contribute mainly, while the others can be neglected. Our prediction results have been found to match well with the measurement results.
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