Computationally efficient compensations for some smart antenna systems

Author

Song, Young Seog ; Kwon, Dong Seung

Author_Institution

Mobile Telecommun. Res. Lab., Electron. & Telecommun. Res. Inst., Daejon, South Korea

Volume

7

fYear

2004

fDate

26-29 Sept. 2004

Firstpage

4786

Abstract

Some smart antenna systems need calibration, which measures the transmitter/receiver circuit path gains for each antenna and compensate the differences. Compensation is usually done in baseband using complex number multiplications. We propose efficient compensations for some time division duplex (TDD) smart antenna systems that use the channel reciprocity for downlink beamforming, and show that the number of arithmetic operations can be significantly reduced.

Keywords

adaptive antenna arrays; array signal processing; calibration; compensation; receiving antennas; time division multiplexing; transmitting antennas; TDD; antenna calibration; antenna path difference compensation; arithmetic operations; channel reciprocity; complex number multiplication; downlink beamforming; receiver circuit path gains; smart antenna systems; time division duplex; transmitter circuit path gains; Antenna measurements; Array signal processing; Baseband; Calibration; Circuits; Downlink; Gain measurement; Receiving antennas; Transmitters; Transmitting antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2004. VTC2004-Fall. 2004 IEEE 60th

ISSN

1090-3038

Print_ISBN

0-7803-8521-7

Type

conf

DOI

10.1109/VETECF.2004.1405002

Filename

1405002