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Open-loop transmit diversity of downlink CDMA systems over Rayleigh fading channels

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2 Author(s)
Dianjun Chen ; Dept. of Electron. Eng., Univ. of Electro-Commun., Tokyo, Japan ; Hashimoto, T.

This paper describes the transmit diversity for a downlink multiuser CDMA system with distinct signature waveforms assigned to distinct antennas. We derive an upper bound of error probability and propose a new class of signature waveforms with which we can achieve the same BER as a system with orthogonal spread sequences for the number of user near to the processing gain. The proposal system is simple to implement and allows a simple receiver.

Published in:

Information Theory, 2003. Proceedings. IEEE International Symposium on

Date of Conference:

29 June-4 July 2003