Blind channel estimation for space-time coded WCDMA
EURASIP Journal on Wireless Communications and Networking - Special issue on multiuser MIMO networks
EURASIP Journal on Applied Signal Processing
Space-time coded MC-CDMA: blind channel estimation, identifiability, and receiver design
EURASIP Journal on Applied Signal Processing
Transmit delay structure design for blind channel estimation over multipath channels
EURASIP Journal on Wireless Communications and Networking
Performance Tradeoff in Multiuser Equalization for CDMA over Flat Channels
IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
A blind channel estimation algorithm for space-time coded MC-CDMA receivers
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
LMS adaptive receiver for uplink space-time coded MC-CDMA systems
ICACT'10 Proceedings of the 12th international conference on Advanced communication technology
Asilomar'09 Proceedings of the 43rd Asilomar conference on Signals, systems and computers
IEEE Transactions on Communications
A blind two-stage receiver for MIMO-CDMA systems
ISRN Communications and Networking
International Journal of Communication Systems
Blind Capon-like adaptive ST-BC MIMO-CDMA receiver based on constant modulus criterion
Digital Signal Processing
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We present in this paper a linear blind multiuser receiver, referred to as the Capon receiver, for code-division multiple-access (CDMA) systems utilizing multiple transmit antennas and space-time (ST) block coding. The Capon receiver is designed by exploiting signal structures imposed by both spreading and ST coding. We highlight the unique ST coding induced structure, which is shown to be critical in establishing several analytical results, including self-interference (i.e., spatially mixed signals of the same user) cancellation, receiver output signal-to-interference-and-noise ratio (SINR), and blind channel estimation of the Capon receiver. To resolve the scalar ambiguity intrinsic to all blind schemes, we propose a semi-blind implementation of the Capon receiver, which capitalizes on periodically inserted pilots and the interference suppression ability of the Capon filters, for (slowly) time-varying channels. Numerical examples are presented to compare the Capon receiver with several other training-assisted and (semi-)blind receivers and to illustrate the performance gain of ST-coded CDMA systems over those without ST coding