MMSE multiuser downlink multiple antenna transmission for CDMA systems | Zendy

Jinho Choi | Zendy; S. Perreau | Zendy

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MMSE multiuser downlink multiple antenna transmission for CDMA systems

Author(s) -

Jinho Choi,

S. Perreau

Publication year - 2004

Publication title -

ieee transactions on signal processing

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.638

H-Index - 270

eISSN - 1941-0476

pISSN - 1053-587X

DOI - 10.1109/tsp.2004.827197

Subject(s) - signal processing and analysis , communication, networking and broadcast technologies , computing and processing

In this paper, we propose a new downlink transmit antenna processing (TAP) technique for code division multiple access (CDMA) equipped with multiple transmit antennas. In order to find the weight vectors for downlink signals, a minimum mean square error (MMSE) performance criterion is used. Since the multiuser interference is taken into account in the calculation of the weighting vectors for TAP, the proposed method is a multiuser downlink TAP method. It is assumed that the downlink channels are known by the downlink TAP. For given channel conditions, the optimal weight vectors are found with a closed-form expression under both flat and frequency-selective fading channel assumptions.

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