Linear Array Design with Switched Beams for Wireless Communications Systems

This paper presents an analysis for optimal designof switched beamforming applied to a linear array for wirelesscommunication systems. The beam switching scheme providescoverage of a given sector in azimuth and controls the sidelobelevel simultaneously. The analysis was developed consideringarrays c...

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Bibliographic Details
Published in:International journal of antennas and propagation 2015-01, Vol.2015 (2015), p.1-9
Main Authors: Müller Tolfo, Sabrina, Guterres Ferreira, Filipe, Machado, Renato, Schlosser, Edson, Ludwig-Barbosa, Vinícius, Heckler, Marcos Vinício Thomas
Format: Article
Language:English
Subjects:
Antenna arrays
Arrays
Control systems
Control theory
Design engineering
Directive antennas
Economic and social effects
Feedback
Linear arrays
Mobile telecommunication systems
Radio transmission
Sidelobes
Wireless communication systems
Wireless telecommunication systems
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Summary:This paper presents an analysis for optimal designof switched beamforming applied to a linear array for wirelesscommunication systems. The beam switching scheme providescoverage of a given sector in azimuth and controls the sidelobelevel simultaneously. The analysis was developed consideringarrays composed of Quasi-Yagi elements. The model assumes auser moving in the azimuthal direction under a constant velocityand with an estimation of the signal-to-noise ratio (SNR) at themobile user (MU). The radio base station applies the beam thatyields the best performance during transmission. The decision isbased on the feedback information received from the MU. Thegoal of the analysis is to determine the best trade-off between thearray size and number of feedback bits necessary to maximize theSNR at the receiver. The results show that a compromise betweenthe number of beam-pointing directions and the array size shouldbe taken into consideration for a wireless communication systemdesign.
ISSN:1687-5869
1687-5877
1687-5877
DOI:10.1155/2015/278160