Title :
An Improved LSCM Algorithm for Blind Multiuser Detection in AWGN CDMA Channels
Author :
Liu Sheng-mei ; Zhu Qi ; Pan Shu ; Song Rong-Fang ; Ling Xian-zhong ; Xu Ming
Author_Institution :
Mobile Commun. Lab., NJUPT, Nanjing
Abstract :
In this letter, we combine the LSCMA(least square constant modulus algorithm) with the subspace approach and present a LSCM_SUB blind adaptive multiuser detection in AWGN CDMA channels. The poor performance of LSCMA in the low SNR will be improved by the LSCM_SUB algorithm. The performance of the proposed LSCM_SUB algorithm is compared with that of LSCMA. Simulation results show that the LSCM_SUB algorithm is superior to the LSCMA especially in the low SNR.
Keywords :
AWGN channels; code division multiple access; multiuser detection; AWGN CDMA channels; LSCM algorithm; blind multiuser detection; least square constant modulus algorithm; subspace approach; AWGN; Additive white noise; Eigenvalues and eigenfunctions; Gaussian noise; Interference; Multiaccess communication; Multiuser detection; Noise cancellation; Noise reduction; Signal to noise ratio;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing, 2007. WiCom 2007. International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-1311-9
DOI :
10.1109/WICOM.2007.196
