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Site diversity on rain fading in broadband fixed wireless access at 26 GHz

Din, Jafri and Khamis, Nor Hisham and Syed Yusof, Sharifah Kamilah and Abdul Latiff, Nurul Mu’azzah (2008) Site diversity on rain fading in broadband fixed wireless access at 26 GHz. In: Special topics in Propagation and Communication Engineering. Penerbit UTM, Johor, p. 1. ISBN 978-983-52-0663-4

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Abstract

Local Multipoint Distribution Services (LMDS) is a terrestrial fixed radio technology for broadband communication applicable as point to multipoint wireless system operating at frequencies above 20 GHz. The most serious impairment at these frequencies is rain fading specially in the tropical areas. Site Diversity is one possible solution to reduce the effect of rain. Rain attenuation in Malaysia was computed and the effects of a moving rain cell over an LMDS system were analyzed. Different situations of interference according to the position of the rain over LMDS were elaborated. The site diversity was implemented and simulated based on the ITU-R to enhance LMDS using carrier-tointerference ratio, C/I under rainy conditions with and without site diversity technique. There is a growing interest in providing broadband services through local access networks to individual users. Millimetricwave radio solutions are considered as the optimal delivery systems to provide digital two-way voice, data, Internet, and video services or other digital services requiring high capacity traffic channels. A broad-band wireless access (BWA) systems or LMDS connects the users to the backbone network instead of broadband wired networks because of its cost efficiency, easy and fast installation, and re-configurability.

Item Type:Book Section
Uncontrolled Keywords:diversity, rain, broadband, wireless
Subjects:T Technology > T Technology (General)
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:Electrical Engineering
ID Code:26483
Deposited By: Fazli Masari
Deposited On:18 Jul 2012 06:56
Last Modified:30 Jul 2012 04:10

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