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Adaptive RAKE Receiver for Mobile Communications
Yukitoshi SANADA Akihiro KAJIWARA Masao NAKAGAWA
IEICE TRANSACTIONS on Communications
Publication Date: 1993/08/25
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Issue on Spread Spectrum Techniques and Applications)
spread spectrum, mobile communication, RAKE system, fading,
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In this paper, we propose an adaptive RAKE receiver, which does not need to send the sounding signals and can track the fluctuations caused by fading. The channel estimation can be done by using a least squares method of the first and second equations suppressing additive noise and tracking the channel fluctuations. It is confirmed by computer simulations that the result has good agreement with theory and the performance is almost same as that of the conventional RAKE with the sounding signals.