Title :
A New Linear Group-Wise SIC Multiuser Detector
Author :
Bentrcia, Abdelouahab ; Zerguine, Azzedine ; Sheikh, Asrar U. ; Benyoucef, Moussa
Author_Institution :
Dept. of Electron., Univ. of Batna
Abstract :
In this work, we introduce a new linear group-wise SIC multi-user detector that can converge to either the decorrelator or the least minimum mean-square error (LMMSE) detector. We study the convergence behavior of the proposed scheme and show that the latter is equivalent to the block Gauss-Seidel iterative method if the group-detection scheme used is the decorrelator detector. Moreover, we prove that the latter is convergent if the group-detection matrix is positive definite. Our simulation results are in excellent agreement with the proposed theory
Keywords :
convergence of numerical methods; decorrelation; interference suppression; iterative methods; least mean squares methods; matrix algebra; multiuser detection; LMMSE detector; block Gauss-Seidel iterative method; convergence; decorrelator; group-detection matrix; least minimum mean-square error; linear group-wise SIC multiuser detector; successive interference cancellation; AWGN; Computational complexity; Decorrelation; Detectors; Gaussian processes; Interference cancellation; Iterative methods; Jacobian matrices; Multiuser detection; Silicon carbide;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2007.061472
