Path Loss Expressions of Ultra Wideband Ground Reflection Channel

2006 ◽  
Author(s):  
Sathit Aroonpraparat ◽  
Pichaya Supanakoon ◽  
Sathaporn Promwong ◽  
Jun-ichi Takada
Keyword(s):  
Path Loss ◽  
Ultra Wideband

scholarly journals Experimental Characterization of Ultra-Wideband Channel Parameter Measurements in an Underground Mine

2011 ◽  
Vol 2011 ◽  
pp. 1-7 ◽  
Author(s):  
B. Nkakanou ◽  
G. Y. Delisle ◽  
N. Hakem
Keyword(s):  
Underground Mining ◽  
Path Loss ◽  
Measurement Procedure ◽  
Ultra Wideband ◽  
Small Scale ◽  
Scale Parameters ◽  
Channel Parameter ◽  
Channel Parameters ◽  
Uwb Channel

Experimental results for an ultra-wideband (UWB) channel parameters in an underground mining environment over a frequency range of 3 GHz to 10 GHz are reported. The measurements were taken both in LOS and NLOS cases in two different size mine galleries. In the NLOS case, results were acquired for different corridor obstruction angles. The results were obtained during an extensive measurement campaign in the UWB frequency, and the measurement procedure allows both the large- and small-scale parameters such as the path loss exponent, coherence bandwidth, and so forth, to be quantified. The capacity of the UWB channel as a function of the physical depth of the mine gallery has also been recorded for comparison purposes.

Regression models of ultra wideband ground reflection path loss based on peak power loss

2007 ◽  
Author(s):  
Pichaya Supanakoon ◽  
Apiradee Pokang ◽  
Sathaporn Promwong ◽  
Suthichai Noppanakeepong ◽  
Jun-ichi Takada
Keyword(s):  
Power Loss ◽  
Regression Models ◽  
Peak Power ◽  
Path Loss ◽  
Ultra Wideband

scholarly journals Research on path loss and shadow fading of ultra wideband simulation channel

2016 ◽  
Vol 12 (12) ◽  
pp. 155014771667984 ◽  
Author(s):  
Zhao Hongmei ◽  
Yao Hailong ◽  
Guo Shuting
Keyword(s):  
Lognormal Distribution ◽  
Comparative Research ◽  
Multipath Propagation ◽  
Path Loss ◽  
Ultra Wideband ◽  
Thick Wall ◽  
Shadow Fading ◽  
Propagation Characteristics ◽  
Distance Dependence ◽  
Geometrical Theory Of Diffraction

The uniform geometrical theory of diffraction and ray tracing technique is used to simulate ultra wideband signal multipath propagation characteristics. The simulation model covers indoor office and outdoor corridor with thick wall and metal doors. The range of path loss exponent of distance is obtained by regression analysis, and the lognormal distribution about shadowing fading is got by the fitting and test. The distance-dependence path loss in the indoor and indoor to the corridor present lognormal distribution characteristics. Through the comparative research, the signal of the transmission metal door has a decisive influence on the corridor environment.

Ground Reflection Path Loss Based on Average Power Loss for Ultra Wideband Communications

2007 ◽  
Author(s):  
Pichaya Supanakoon ◽  
Sarunya Kaewsirisin ◽  
Sathaporn Promwong ◽  
Suthichai Noppanakeepong ◽  
Jun-ichi Takada
Keyword(s):  
Power Loss ◽  
Average Power ◽  
Path Loss ◽  
Ultra Wideband ◽  
Wideband Communications
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