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A New Smart Antenna Algorithm for Improving the Performance of CDMA Reverse Link  

안재민 (충남대학교 전기정보통신 공학과)
안치준 (충남대학교 전기정보통신 공학과)
임민중 (동국대학교 정보통신공학과)
Publication Information
Journal of the Institute of Electronics Engineers of Korea TC / v.40, no.4, 2003 , pp. 45-53 More about this Journal
Abstract
A new smart antenna receiver which incorporates the spatial fourier Transform and the maximal ratio combining(MRC) is proposed. By adapting the spatial fourier transform, the proposed method could separate the received signal into several spatial frequency components which correspond to the arrival angles of signal components, which means the beam focusing. By using the MRC, the proposed method could achieve the maximum signal to noise ratio for the signal of interest. The proposed algorithm is integrated to the CDMA reverse link receiver and simulations are performed to confirm the performance. As a result, the beam focusing effect is confirmed and the performance gain with the proposed algorithm is comparable to ordinary smart antenna receivers. The simulations are performed over the additive white gaussian noise (AWGN) environments and the results are obtained for the beam focusing capability according to the angle of arrival of a signal and the bit error performance improvement according to the number of combining branches in the MRC.
Keywords
Smart Antenna Algorithm; Spatial Fourier Transform; Selective Maximal Ratio Combining;
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