CHANNEL MODELING AND PERFORMANCE ANALYSIS OF DIRECTIVE WIDEBAND NAKAGAMI FADING CHANNELS

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" CHANNEL MODELING AND PERFORMANCE ANALYSIS OF DIRECTIVE WIDEBAND NAKAGAMI FADING CHANNELS "

Document Type	:	Latin Dissertation
Language of Document	:	English
Record Number	:	151371
Doc. No	:	ET23163
Main Entry	:	SAAD MUHAMMED AL-AHMADI
Title Proper	:	CHANNEL MODELING AND PERFORMANCE ANALYSIS OF DIRECTIVE WIDEBAND NAKAGAMI FADING CHANNELS
Note	:	This document is digital این مدرک بصورت الکترونیکی می باشد
Abstract	:	The use of antenna arrays is one of the promising schemes for reducingthe effect of multiple-access interference in 3G systems. So, it is expected thatthe use of 2-D RAKE receivers will improve capacity, coverage, and qualityin W-CDUA systems. However, the performance of 2-D RAKE receivers issensitive to the spatial correlations at the antenna array elements. The goalof this thesis is to introduce the appropriate spatial models of both typicalurban and bad urban channels, calculate the resulting spatial correlationsand then analyze the performance of 2-0 RAKE receivers in bad urbanmicrocellular channels. Geometrically based modeling is used to derive theangle of arrival statistics and then the temporal and spatial correlations atthe BS are calculated using numerical integration schemes. The results showthe drfferences in the spatial and temporal characteristics between TU andBU areas for both LOS and N-LOS cases. The performance of 2-D RAKEreceivers in spatially correlated Nakagami faded bad urban channels isinvestigated by deriving the theoretical BER and running Monte Carlosimulations. The results show the signifcant gain in capacity of 2-D RAKEreceivers as compared to I-D RAKE receivers and the efect of the existenceof rhe LOS component on the spatial diversity gain as....-....,....-...,..tested for theQ1 PC1 bus cardBoth these projects mere sofixare des elopment efforts tonards contributing to dlfferentaspects of Roboucs and lZ1echatronics projects m the Controls and Roboucs Group..
Subject	:	Electericl tess
	:	برق
electronic file name	:	TL46399.pdf
Title and statement of responsibility and	:	CHANNEL MODELING AND PERFORMANCE ANALYSIS OF DIRECTIVE WIDEBAND NAKAGAMI FADING CHANNELS [Thesis]