Title :
Pre-processing blind multiuser detection algorithm in antenna array system and its robustness to DOA estimation error
Author :
Fu, Hong-Liang ; Feng, Guang-zeng
Author_Institution :
Dept. of Commun. Eng., Nanjing Univ. of the Posts & Telecommun., China
Abstract :
A pre-processing least squares constant modulus blind multiuser detection algorithm, based on decision-feedback (PDF-LSCMA), in an antenna array system is proposed in this paper. The robustness of PDF-LSCMA to the DOA estimation error and the maximum value of DOA estimation error are also analyzed in this paper. Simulation validates the algorithm and theoretical analysis.
Keywords :
array signal processing; direction-of-arrival estimation; least squares approximations; multiuser detection; DOA estimation error; DS-CDMA; PDF-LSCMA; antenna array system; decision-feedback detection; direction of arrival detection; least squares constant modulus detection algorithm; preprocessing blind multiuser detection; Algorithm design and analysis; Analytical models; Antenna arrays; Detectors; Direction of arrival estimation; Estimation error; Multiaccess communication; Multiuser detection; Receiving antennas; Robustness;
Conference_Titel :
Antenna Technology: Small Antennas and Novel Metamaterials, 2005. IWAT 2005. IEEE International Workshop on
Print_ISBN :
0-7803-8842-9
DOI :
10.1109/IWAT.2005.1461134
