Title :
Block-FFT for multiuser detection in uplink TD-SCDMA system
Author :
Wei, Wang ; Kai, Zhang ; Dan, Chen ; Wencheng, Li
Author_Institution :
Chongqing Univ. of Posts & Telecommun., Chongqing
Abstract :
The Block-FFT based multiuser detection algorithm is investigated, and the complexity and performance of the proposed 8-point Block-FFT multiuser detector is compared to that of Cholesky decomposition based multiuser detector. The results indicate that the performance of the proposed 8-point Block-FFT algorithm is comparable to that of Cholesky decomposition algorithm, and the complexity is lower than that of Cholesky decomposition algorithm.
Keywords :
code division multiple access; fast Fourier transforms; signal detection; block-FFT; multiuser detection; uplink TD-SCDMA system; Colored noise; Computational complexity; Covariance matrix; Detectors; Frequency domain analysis; Interference suppression; Matrices; Matrix decomposition; Multiuser detection; Time division synchronous code division multiple access; Block-FFT; Cholesky decomposition; Multiuser detection; circulant matrix;
Conference_Titel :
Communication Technology, 2008. ICCT 2008. 11th IEEE International Conference on
Conference_Location :
Hangzhou
Print_ISBN :
978-1-4244-2250-0
Electronic_ISBN :
978-1-4244-2251-7
DOI :
10.1109/ICCT.2008.4716181
