volume | PIER Journals

2006-11-17

A Comprehensive Performance Study of Circular and Hexagonal Array Geometreis in the LMS Algorithem for Smart Antenna Applications

Farhad Gozasht,

Dr. Farhad Gozasht

Department of Electrical Engineering

Sahand University of Technology Tabriz

Iran

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Gholamreza R. Dadashzadeh,

Dr. Gholamreza R. Dadashzadeh

Faculity of Engineering

Shahed University

Iran

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Saeid Nikmhr

Dr. Saeid Nikmhr

Department of Electrical Engineering

Sahand University of Technology Tabriz

Iran

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Progress In Electromagnetics Research, Vol. 68, 281-296, 2007

doi:10.2528/PIER06091002

Abstract

Space division multiple access (SDMA) is a promising can- didate for improving channel capacity in future wireless communication systems. Considering that discrimination performance of the user in the spatial domain depends on the array arrangement, and as a result the optimum element arrangement for SDMA should be defined, beam- forming play a very important role providing fundamental theory of design procedure. However the pattern of antenna array is determined by array geometry. Two-dimensional (2-D) spatial filters that can be implemented by microstrip technology are capable of filtering the re- ceived signal in the angular domain as well as the frequency domain. This paper focuses on various geometries of eight and nine elements antenna arrays using circularly patch elements as well as hexagonal ar- ray with seven elements. The network throughput is further analyzed to determine if using a fully adaptive pattern (LMS algorithm gener- ated pattern) results in a higher throughput with or without presence of mutual coupling effects.

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Farhad Gozasht, Gholamreza R. Dadashzadeh, and Saeid Nikmhr, "A Comprehensive Performance Study of Circular and Hexagonal Array Geometreis in the LMS Algorithem for Smart Antenna Applications," Progress In Electromagnetics Research, Vol. 68, 281-296, 2007.
doi:10.2528/PIER06091002

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