On Blind Timing Acquisition and Channel Estimation for Wideband Multiuser DS-CDMA Systems
Journal of VLSI Signal Processing Systems
Wireless Personal Communications: An International Journal
Fast Converging Adaptive MMSE Multiuser Detector for DS-CDMA System
Wireless Personal Communications: An International Journal
Intersymbol decorrelating detector for asynchronous CDMA networks with multipath
EURASIP Journal on Wireless Communications and Networking
A blind cascade structure interference cancellation RAKE receiver for CDMA communications
Proceedings of the 2006 international conference on Wireless communications and mobile computing
Further study on MOE-based multiuser detection in unknown multipath
EURASIP Journal on Applied Signal Processing
Blind multiuser detection by kurtosis maximization for asynchronous multirate DS/CDMA systems
EURASIP Journal on Applied Signal Processing
Blind PARAFAC signal detection for polarization sensitive array
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
Multiuser receivers for MC-CDMA MIMO systems with space-time block codes
Signal Processing
A two-stage Independent Component Analysis-based method for blind detection in CDMA systems
Digital Signal Processing
Blind Capon-like adaptive ST-BC MIMO-CDMA receiver based on constant modulus criterion
Digital Signal Processing
Hi-index | 35.68 |
Constrained optimization of the receiver's output variance has previously been proposed as a relatively simple method for designing blind multiuser detectors for DS-CDMA systems. A single constraint is sufficient for the AWGN case, whereas multiple constraints should be used in a multipath environment. It is shown in this paper that the choice of the constraint parameters in the multipath case can have a significant effect on the system performance. A max/min approach for optimizing the constraint is proposed, resulting in blind solutions with improved performance. It is shown that the performance of the proposed method tends to be close to that of the MMSE receiver at high SNR, whereas the constraint parameters converge to the multipath channel parameters. The proposed method does not require knowledge of the interfering users' codes and timing. Simulation results support those performance claims