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by Rzvan Cristescu, Tapani Ristaniemi, Jyrki Joutsensalo, Juha Karhunen
http://www.cis.hut.fi/~juha/papers/eusipco00.ps
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Abstract:
This paper presents a new method for symbol estimation in the downlink of a CDMA communication system. Our approach is based on the observation that the slowly-fading CDMA signal model may be expressed as a linear combination of the convolved independent symbol sequences. A blind source separation approach based on maximization of output entropy is used for the blind separation of the sources; the symbols corresponding to the user of interest are determined using a small training sequence. Our method shows good simulation results when compared to traditional symbol separation techniques. 1
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