Multiuser Detection in MC-CDMA Communication Systems Using MPEM Algorithm
Wireless Personal Communications: An International Journal
Space-time coded MC-CDMA: blind channel estimation, identifiability, and receiver design
EURASIP Journal on Applied Signal Processing
Timing-free blind multiuser detection for multicarrier DS/CDMA systems with multiple antennae
EURASIP Journal on Applied Signal Processing
EURASIP Journal on Wireless Communications and Networking - Multicarrier Systems
Journal of Signal Processing Systems
Wireless Personal Communications: An International Journal
Linear prediction based multiuser detection for multicarrier CDMA communications systems
MILCOM'09 Proceedings of the 28th IEEE conference on Military communications
Wireless Personal Communications: An International Journal
Computers and Electrical Engineering
Joint estimation of correlated multi-carrier DS-CDMA mobile fading channels based on optimal filters
International Journal of Systems, Control and Communications
Proceedings of the 15th annual conference on Genetic and evolutionary computation
Performance of STTC-MC-CDMA Systems with Imperfect Channel Estimation
Wireless Personal Communications: An International Journal
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Minimum mean-squared error (MMSE) detection of multicarrier code-division multiple-access (CDMA) signals is investigated. The theoretical performance of two different design strategies for MMSE detection are compared. In one case, the MMSE filters are designed separately for each carrier, while in the other case the optimization of the filters is done jointly. Naturally, the joint optimization produces a better receiver, but the difference in performance is shown to be substantial. The multicarrier CDMA performance is then compared to that of a single-carrier CDMA system on a frequency-selective fading channel. A mechanism is then developed to track the channel fading parameters for all the users' signals so that joint optimization of the receiver filters is possible in a time-varying channel. Simulation results show that the performance of this receiver is close to ideal theoretical results for moderate vehicle speeds. The performance begins to degrade when the normalized Doppler rate is higher than about 1%