Hybrid 1-opt Local Search Polynomial-Expanded Linear Multiuser Detectors

Reinaldo Gotz, Taufik Abrao
2013 IEEE Latin America Transactions  
In order to reduce computational complexity inherent to cross-correlation matrix inversion in DS/CDMA system, this work proposes a hybrid multiuser detector based on polynomial expansion (PE-MuD) followed by a low complexity local search procedure, aiming at obtaining a near-optimum multiuser bit-error-rate (BER) performance, but with an amount of computational processing saving time. The proposed hybrid PE-MuD receiver topology is analyzed under realistic wireless mobile channels, as well as
more » ... nnels, as well as useful system operation scenarios. Simulations results have indicated an improvement in performance-complexity trade-off regarding the classical linear multiuser detectors (MuD) performance, particularly, the mean square error minimization-based detector (MMSE).
doi:10.1109/tla.2013.6684391 fatcat:fwhmwofje5bgvbdgmqkwnpcftq