Effects of frequency on fade slope based on measured rain attenuation data in Malaysia

There is an ever increasing demand for radio-frequency (RF) spectrum by the nations of the world, in order to satisfy the growing demand for long-distance communications. As C-band (4/6 GHz) is already congested, and Ku-band (12/14 GHz) is filling up rapidly, currently interest focus on the util...

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Main Authors: Islam, Md. Rafiqul, Chebil, Jalel, Dao, Hassan, M., Al-Hareth
Format: Proceeding Paper
Language:English
Published: 2010
Subjects:
Online Access:http://irep.iium.edu.my/23084/1/p76.pdf
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author Islam, Md. Rafiqul
Chebil, Jalel
Dao, Hassan
M., Al-Hareth
author_facet Islam, Md. Rafiqul
Chebil, Jalel
Dao, Hassan
M., Al-Hareth
author_sort Islam, Md. Rafiqul
collection IIUM
description There is an ever increasing demand for radio-frequency (RF) spectrum by the nations of the world, in order to satisfy the growing demand for long-distance communications. As C-band (4/6 GHz) is already congested, and Ku-band (12/14 GHz) is filling up rapidly, currently interest focus on the utilization of higher bands. Some systems are already designed to operate at Ka-band (20/30 GHz), and it is probable that serious consideration to utilize V-band (40/50 GHz) in the future will be given. However, when operating at the higher frequency Ku-band, the strength of the signal may be temporarily reduced under severe rain conditions. Rain attenuation is an obstacle in a design of radio systems especially in microwave frequencies. Generally, rain attenuation increases as the signal frequency increases, but does this affect the fade slope which is defined as the rate of change of attenuation in (dB/s). This paper will highlight the effect of frequency on fade slope based on measured data of rain attenuation in Malaysia between May 1998 to April 2000 at four different frequencies (15, 23, 26 and 38GHz). The effect of the link length will be also highlighted.
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spelling oai:generic.eprints.org:230842013-06-19T01:19:57Z http://irep.iium.edu.my/23084/ Effects of frequency on fade slope based on measured rain attenuation data in Malaysia Islam, Md. Rafiqul Chebil, Jalel Dao, Hassan M., Al-Hareth TK5101 Telecommunication. Including telegraphy, radio, radar, television There is an ever increasing demand for radio-frequency (RF) spectrum by the nations of the world, in order to satisfy the growing demand for long-distance communications. As C-band (4/6 GHz) is already congested, and Ku-band (12/14 GHz) is filling up rapidly, currently interest focus on the utilization of higher bands. Some systems are already designed to operate at Ka-band (20/30 GHz), and it is probable that serious consideration to utilize V-band (40/50 GHz) in the future will be given. However, when operating at the higher frequency Ku-band, the strength of the signal may be temporarily reduced under severe rain conditions. Rain attenuation is an obstacle in a design of radio systems especially in microwave frequencies. Generally, rain attenuation increases as the signal frequency increases, but does this affect the fade slope which is defined as the rate of change of attenuation in (dB/s). This paper will highlight the effect of frequency on fade slope based on measured data of rain attenuation in Malaysia between May 1998 to April 2000 at four different frequencies (15, 23, 26 and 38GHz). The effect of the link length will be also highlighted. 2010 Proceeding Paper PeerReviewed application/pdf en http://irep.iium.edu.my/23084/1/p76.pdf Islam, Md. Rafiqul and Chebil, Jalel and Dao, Hassan and M., Al-Hareth (2010) Effects of frequency on fade slope based on measured rain attenuation data in Malaysia. In: IIUM Research, Innovation & Invention Exhibition (IRIIE 2010), 26 - 27 January 2010, Kuala Lumpur. http://www.iium.edu.my/irie/10/
spellingShingle TK5101 Telecommunication. Including telegraphy, radio, radar, television
Islam, Md. Rafiqul
Chebil, Jalel
Dao, Hassan
M., Al-Hareth
Effects of frequency on fade slope based on measured rain attenuation data in Malaysia
title Effects of frequency on fade slope based on measured rain attenuation data in Malaysia
title_full Effects of frequency on fade slope based on measured rain attenuation data in Malaysia
title_fullStr Effects of frequency on fade slope based on measured rain attenuation data in Malaysia
title_full_unstemmed Effects of frequency on fade slope based on measured rain attenuation data in Malaysia
title_short Effects of frequency on fade slope based on measured rain attenuation data in Malaysia
title_sort effects of frequency on fade slope based on measured rain attenuation data in malaysia
topic TK5101 Telecommunication. Including telegraphy, radio, radar, television
url http://irep.iium.edu.my/23084/1/p76.pdf
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AT malhareth effectsoffrequencyonfadeslopebasedonmeasuredrainattenuationdatainmalaysia