Development of Path Loss Models for Smooth and Convex Surfaces Terrains in Malaysian Environment

This study describes the development of path loss prediction model for smooth and convex surfaces terrains in Malaysian environment. The measurement system consists of a spectrum analyzer and a log-periodic antenna. A computer program was developed to acquire measured field strength data from the sp...

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Main Author:	Wong, Peng Kiong
Format:	Thesis
Language:	English English
Published:	2004
Subjects:	Convex surfaces - Malaysia Land use - Malaysia
Online Access:	http://psasir.upm.edu.my/id/eprint/425/1/549718_FS_2004_3.pdf
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id	my-upm-ir.425
record_format	uketd_dc
spelling	my-upm-ir.4252013-05-27T06:48:16Z Development of Path Loss Models for Smooth and Convex Surfaces Terrains in Malaysian Environment 2004-09 Wong, Peng Kiong This study describes the development of path loss prediction model for smooth and convex surfaces terrains in Malaysian environment. The measurement system consists of a spectrum analyzer and a log-periodic antenna. A computer program was developed to acquire measured field strength data from the spectrum analyzer and convert the values to path loss using Agilent Visual Engineering Environment (VEE). Both line-of-sight propagation (for smooth terrain) and non-line-of-sight propagation (for convex surface terrains) was investigated in the Serdang area. The measured path losses was compared with various path loss prediction models such as free space loss (FSL), plane earth loss (PEL), Walfisch-Ikegami LOS (WI), Epstein-Peterson (E-P), Deygout (D), Edward-Durkin (E-D), Blomquist-Ladell (B-L) and Giovanelli (G). The results show that these entire models gave unsatisfactory results when compared with the measured path losses, where for smooth terrain, the FSL, PEL and WI models overestimated the path loss as high as 72%, 70% and 23%, respectively and for single and double convex surfaces terrains, the E-P, D, E-D, B-L and G models overestimated the path loss as high as 25% in all measurement frequencies. Because of and an improved version of the E-P and G models have been developed to suit these three regions and the accuracy of these entire models was tested where the mean error values were found to be approximately 5% for all the measurement frequencies. An integrated UPMPL path loss model for both smooth and convex surfaces terrains has been developed and implemented using Agilent VEE. The UPMPL program provides the utility for calculating the signal characteristics of radio propagation paths and is realized in the run time format version. This program consists of four algorithms which are conversion formulas, smooth terrain, single convex surface terrain and double convex surfaces terrain. Convex surfaces - Malaysia Land use - Malaysia 2004-09 Thesis http://psasir.upm.edu.my/id/eprint/425/ http://psasir.upm.edu.my/id/eprint/425/1/549718_FS_2004_3.pdf application/pdf en public masters Universiti Putra Malaysia Convex surfaces - Malaysia Land use - Malaysia Faculty of Science English
institution	Universiti Putra Malaysia
collection	PSAS Institutional Repository
language	English English
topic	Convex surfaces - Malaysia Land use - Malaysia
spellingShingle	Convex surfaces - Malaysia Land use - Malaysia Wong, Peng Kiong Development of Path Loss Models for Smooth and Convex Surfaces Terrains in Malaysian Environment
description	This study describes the development of path loss prediction model for smooth and convex surfaces terrains in Malaysian environment. The measurement system consists of a spectrum analyzer and a log-periodic antenna. A computer program was developed to acquire measured field strength data from the spectrum analyzer and convert the values to path loss using Agilent Visual Engineering Environment (VEE). Both line-of-sight propagation (for smooth terrain) and non-line-of-sight propagation (for convex surface terrains) was investigated in the Serdang area. The measured path losses was compared with various path loss prediction models such as free space loss (FSL), plane earth loss (PEL), Walfisch-Ikegami LOS (WI), Epstein-Peterson (E-P), Deygout (D), Edward-Durkin (E-D), Blomquist-Ladell (B-L) and Giovanelli (G). The results show that these entire models gave unsatisfactory results when compared with the measured path losses, where for smooth terrain, the FSL, PEL and WI models overestimated the path loss as high as 72%, 70% and 23%, respectively and for single and double convex surfaces terrains, the E-P, D, E-D, B-L and G models overestimated the path loss as high as 25% in all measurement frequencies. Because of and an improved version of the E-P and G models have been developed to suit these three regions and the accuracy of these entire models was tested where the mean error values were found to be approximately 5% for all the measurement frequencies. An integrated UPMPL path loss model for both smooth and convex surfaces terrains has been developed and implemented using Agilent VEE. The UPMPL program provides the utility for calculating the signal characteristics of radio propagation paths and is realized in the run time format version. This program consists of four algorithms which are conversion formulas, smooth terrain, single convex surface terrain and double convex surfaces terrain.
format	Thesis
qualification_level	Master's degree
author	Wong, Peng Kiong
author_facet	Wong, Peng Kiong
author_sort	Wong, Peng Kiong
title	Development of Path Loss Models for Smooth and Convex Surfaces Terrains in Malaysian Environment
title_short	Development of Path Loss Models for Smooth and Convex Surfaces Terrains in Malaysian Environment
title_full	Development of Path Loss Models for Smooth and Convex Surfaces Terrains in Malaysian Environment
title_fullStr	Development of Path Loss Models for Smooth and Convex Surfaces Terrains in Malaysian Environment
title_full_unstemmed	Development of Path Loss Models for Smooth and Convex Surfaces Terrains in Malaysian Environment
title_sort	development of path loss models for smooth and convex surfaces terrains in malaysian environment
granting_institution	Universiti Putra Malaysia
granting_department	Faculty of Science
publishDate	2004
url	http://psasir.upm.edu.my/id/eprint/425/1/549718_FS_2004_3.pdf
_version_	1747810218551541760

Development of Path Loss Models for Smooth and Convex Surfaces Terrains in Malaysian Environment

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