Title :
Blind Multi-User Detection Based on Auxiliary Particle Filter in Fading CDMA Channels
Author :
Han, Yafei ; Liang, Guolong
Author_Institution :
Coll. of Underwater Acoust. Eng., Harbin Eng. Univ., Harbin, China
Abstract :
Auxiliary particle filter (APF) algorithm for blind adaptive multi-user detection (MUD) is introduced in this paper and simulation background is in synchronous code division multiple access (CDMA) system over fading channels. Because of the performance of APF in parameter estimation is prior to general particle filter (PF), APF algorithm is a very popular alternative to PF algorithm. Simulation results show that the performance of APF-based blind multi-user detector outperforms general PF-based one. On the condition of strong interference and number of users increasing the APF algorithm always produce better detection results.
Keywords :
adaptive signal detection; channel estimation; code division multiple access; fading channels; multiuser channels; multiuser detection; particle filtering (numerical methods); radiofrequency interference; auxiliary particle filter algorithm; blind adaptive multiuser detection; fading CDMA channel; multiple access interference; parameter estimation; synchronous code division multiple access system; Acoustical engineering; Detectors; Fading; Least squares approximation; Multiaccess communication; Multiple access interference; Multiuser detection; Particle filters; State-space methods; Training data;
Conference_Titel :
E-Business and Information System Security, 2009. EBISS '09. International Conference on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-2909-7
Electronic_ISBN :
978-1-4244-2910-3
DOI :
10.1109/EBISS.2009.5137947
