Title :
Indoor propagation prediction utilizing a new empirical model
Author :
Cheung, K.W. ; Sau, J.H. ; Fong, M.S. ; Murch, R.D.
Author_Institution :
Dept. of Electr. & Electron. Eng., Hong Kong Univ. of Sci. & Technol., Kowloon, Hong Kong
Abstract :
A new UHF empirical propagation prediction model is presented to characterize the path loss in indoor environments. Our model includes two additional terms which are not usually invoked in other models. The first term is a “breakpoint” in which the mean path loss exponent increases significantly when the transmitter-receiver distance increases beyond a certain distance. The second term that is incorporated are diffraction effects. These improve the accuracy of the model especially in shadowed regions. Our new empirical propagation prediction model incorporating these features fits the data within 3.9 dB for specific area with a standard deviation of error of 4.9 dB for the entire data set
Keywords :
UHF measurement; UHF radio propagation; geometrical theory of diffraction; indoor radio; loss measurement; ray tracing; UHF; accuracy; breakpoint; diffraction effects; empirical propagation prediction model; error; geometrical theory of diffraction; indoor environments; indoor propagation prediction; mean path loss exponent; path loss; shadowed regions; signal attenuation; standard deviation; transmitter-receiver distance; Attenuation; Buildings; Diffraction; Electromagnetic propagation; Floors; Frequency; Predictive models; Propagation losses; Ray tracing; Transmitters;
Conference_Titel :
Singapore ICCS '94. Conference Proceedings.
Print_ISBN :
0-7803-2046-8
DOI :
10.1109/ICCS.1994.474116