Smart Antennas for MIMO-SDMA- An Overview and Modeling

Author

Kumar, D. Sriram ; Varma, G. Gopi Krishna

Author_Institution

Dept. of Electron. & Commun. Eng., Nat. Inst. of Technol., Trichy

fYear

2008

fDate

21-24 Nov. 2008

Firstpage

485

Lastpage

488

Abstract

Smart/adaptive array antenna can track the unknown interference signal in real time automatically, that is, it can direct antenna pattern with nulls towards the interference and offer gain to the required signal to ensure the required signal reception, so output SINR (signal to Interference and Noise Ratio) is improved. Direction-of-arrival (DOA) estimation is based on the MUSIC algorithm for identifying the directions of the source signals incident on the sensor array comprising the smart antenna system. Adaptive beamforming is achieved using the LMS algorithm for directing the main beam towards the desired source signals and generating deep nulls in the directions of interfering signals.

Keywords

MIMO communication; adaptive antenna arrays; antenna radiation patterns; direction-of-arrival estimation; least mean squares methods; radiofrequency interference; space division multiple access; LMS algorithm; MIMO; MUSIC algorithm; SDMA; SINR; adaptive array antenna; adaptive beamforming; antenna pattern; direction-of-arrival estimation; interference signal; signal to interference and noise ratio; smart antennas; space division multiple access; Adaptive arrays; Antenna arrays; Direction of arrival estimation; Intelligent sensors; Interference; Multiple signal classification; Sensor arrays; Sensor systems; Signal processing; Signal to noise ratio; Adaptive array; Beamforming; Smart Antenna; antenna;

fLanguage

English

Publisher

ieee

Conference_Titel

Recent Advances in Microwave Theory and Applications, 2008. MICROWAVE 2008. International Conference on

Conference_Location

Jaipur

Print_ISBN

978-1-4244-2690-4

Electronic_ISBN

978-1-4244-2691-1

Type

conf

DOI

10.1109/AMTA.2008.4762967

Filename

4762967