Title :
Subspace tracking based blind multiuser detection: a MMSE estimation approach
Author :
Neng, Wang ; Baoyu, Zheng ; Weiping, Zhu
Author_Institution :
Dept. of Inf. Eng., Nanjing Univ. of Posts & Telecommun., China
Abstract :
A blind multiuser detection scheme based on the signal subspace tracking technique is proposed. Different from some other blind detection schemes, we study the blind detection problem from the perspective of user´s parameter estimation in the signal subspace. By using efficient subspace tracking algorithms, this scheme offers better performance and lower computational complexity. Simulation examples are given to compare the performance
Keywords :
AWGN channels; code division multiple access; computational complexity; least mean squares methods; multiuser channels; parameter estimation; signal detection; tracking; AWGN channel; CDMA; MMSE estimation; blind multiuser detection; computational complexity; parameter estimation; signal subspace tracking; Computational complexity; Computational modeling; Decorrelation; Detectors; Gaussian noise; Maximum likelihood estimation; Multiaccess communication; Multiple access interference; Multiuser detection; Parameter estimation;
Conference_Titel :
Signal Processing Proceedings, 2000. WCCC-ICSP 2000. 5th International Conference on
Conference_Location :
Beijing
Print_ISBN :
0-7803-5747-7
DOI :
10.1109/ICOSP.2000.893449
