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Study of measurements and prediction models for signal attenuation in vegetation media at microwave frequencies

MUCEET 2009 is organized by Malaysian Technical Universities Network (MTUN) comprising of Universiti Malaysia Perlis (UniMAP), Universiti Tun Hussein Onn (UTHM), Universiti Teknikal Melaka (UTeM) and Universiti Malaysia Pahang (UMP), 20th - 22nd June 2009 at M. S. Garden Hotel, Kuantan, Pahang.

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Bibliographic Details
Main Authors: El-Shayeb, Mahmoud, Ahmad Faizal, Mohd Zain
Format: Working Paper
Language:English
Published: Universiti Malaysia Pahang (UMP) 2010
Subjects:
Vegetation
Propagation
Microwave
Prediction
Malaysian Technical Universities Conference on Engineering and Technology (MUCEET)
Online Access:http://dspace.unimap.edu.my/xmlui/handle/123456789/8614
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spelling my.unimap-86142010-08-12T04:15:19Z Study of measurements and prediction models for signal attenuation in vegetation media at microwave frequencies El-Shayeb, Mahmoud Ahmad Faizal, Mohd Zain Vegetation Propagation Microwave Prediction Malaysian Technical Universities Conference on Engineering and Technology (MUCEET) MUCEET 2009 is organized by Malaysian Technical Universities Network (MTUN) comprising of Universiti Malaysia Perlis (UniMAP), Universiti Tun Hussein Onn (UTHM), Universiti Teknikal Melaka (UTeM) and Universiti Malaysia Pahang (UMP), 20th - 22nd June 2009 at M. S. Garden Hotel, Kuantan, Pahang. The effects of vegetation media on the planning and design of radio links at microwave and millimeter wave frequencies are considerable and must be accounted for by radio system operators and users. This paper presents a study of propagation models for the excess attenuation of signals caused by such media whose mathematical descriptions have been optimized using measured data. This paper shows that one of the models which expresses the attenuation as a function of frequency and depth of vegetation gives close predictions for the two broad generic cases of trees 'in-leaf and 'out-of leaf . Measurements have been made to determine the extent of attenuation of millimeter-wave signals when propagated through vegetation. Methods for predicting such attenuation exist, but are either deterministic in form or therefore complex to implement or are completely empirical and take no account of measurement geometry. A new semi-empirical model is presented here which is based on measurements of vegetation attenuation presented previously, and has some account of the measurement geometry. This model is compared with measured data and is shown to give considerably better agreement. 2010-08-12T04:15:19Z 2010-08-12T04:15:19Z 2009-06-20 Working Paper http://hdl.handle.net/123456789/8614 en Proceedings of the Malaysian Technical Universities Conference on Engineering and Technology (MUCEET) 2009 Universiti Malaysia Pahang (UMP)
institution Universiti Malaysia Perlis
building UniMAP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Perlis
content_source UniMAP Library Digital Repository
url_provider http://dspace.unimap.edu.my/
language English
topic Vegetation
Propagation
Microwave
Prediction
Malaysian Technical Universities Conference on Engineering and Technology (MUCEET)
spellingShingle Vegetation
Propagation
Microwave
Prediction
Malaysian Technical Universities Conference on Engineering and Technology (MUCEET)
El-Shayeb, Mahmoud
Ahmad Faizal, Mohd Zain
Study of measurements and prediction models for signal attenuation in vegetation media at microwave frequencies
description MUCEET 2009 is organized by Malaysian Technical Universities Network (MTUN) comprising of Universiti Malaysia Perlis (UniMAP), Universiti Tun Hussein Onn (UTHM), Universiti Teknikal Melaka (UTeM) and Universiti Malaysia Pahang (UMP), 20th - 22nd June 2009 at M. S. Garden Hotel, Kuantan, Pahang.
format Working Paper
author El-Shayeb, Mahmoud
Ahmad Faizal, Mohd Zain
author_facet El-Shayeb, Mahmoud
Ahmad Faizal, Mohd Zain
author_sort El-Shayeb, Mahmoud
title Study of measurements and prediction models for signal attenuation in vegetation media at microwave frequencies
title_short Study of measurements and prediction models for signal attenuation in vegetation media at microwave frequencies
title_full Study of measurements and prediction models for signal attenuation in vegetation media at microwave frequencies
title_fullStr Study of measurements and prediction models for signal attenuation in vegetation media at microwave frequencies
title_full_unstemmed Study of measurements and prediction models for signal attenuation in vegetation media at microwave frequencies
title_sort study of measurements and prediction models for signal attenuation in vegetation media at microwave frequencies
publisher Universiti Malaysia Pahang (UMP)
publishDate 2010
url http://dspace.unimap.edu.my/xmlui/handle/123456789/8614
_version_ 1643789269278392320
score 13.222552

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