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Proceedings Paper

Smart antennas for the on-air on-frequency repeater in 3G mobile communication applications
Author(s): Jong Hyun Lee; Joohwan Chun; Joowan Kim; Paul Choi; Jong Cheol Yun; Sang Jun Lee
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Paper Abstract

We present a new robust beamforming algorithm that can be used as an on-air on-frequency repeater. The major problem of a repeater is self interference of repeated signal. When we use an antenna array, the LCMV (linearly constrained minimum variance) beamformer would be ideal if the array response vector is perfectly known. However, the LCMV is very sensitive to array imperfection, and it may suppress the desired signal, too if we use an uncalibrated array. To alleviate this problem, many robust beamforming algorithms have been proposed. In this paper we propose another robust beamforming algorithm using cost-function minimization technique. Our algorithm shows good performance and does not require any information except the direction of arrival of the incoming repeating signal.

Paper Details

Date Published: 20 November 2001
PDF: 8 pages
Proc. SPIE 4474, Advanced Signal Processing Algorithms, Architectures, and Implementations XI, (20 November 2001); doi: 10.1117/12.448670
Show Author Affiliations
Jong Hyun Lee, Korea Advanced Institute of Science and Technology (South Korea)
Joohwan Chun, Korea Advanced Institute of Science and Technology (South Korea)
Joowan Kim, KM Telecom (South Korea)
Paul Choi, SK Telecom (South Korea)
Jong Cheol Yun, SK Telecom (South Korea)
Sang Jun Lee, SK Telecom (South Korea)


Published in SPIE Proceedings Vol. 4474:
Advanced Signal Processing Algorithms, Architectures, and Implementations XI
Franklin T. Luk, Editor(s)

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