Title :
Adaptive blind multiuser detection in asynchronous CDMA
Author :
Murillo-Fuentes, Juan J. ; Sanchez-Fernandez, Matilde ; González-Serrano, Francisco J.
Author_Institution :
Dpto. Tecnologias de las Comunicaciones, Univ. Carlos III, Madrid, Spain
Abstract :
This paper applies blind source separation (BSS) to the design of an adaptive blind multiuser detector for an asynchronous code division multiple access (CDMA) system. Our starting hypotheses are the spreading factor and the number of users transmitting in the system. We assume too that we do not have knowledge of the spreading sequences or the delays affecting each of the users in the system. The proposed blind receptor has a similar performance compared to the synchronized matched filter
Keywords :
adaptive signal detection; array signal processing; code division multiple access; multiuser channels; receivers; synchronisation; BSS; adaptive blind multiuser detection; asynchronous CDMA; asynchronous code division multiple access system; blind receptor; blind source separation; spreading factor; Blind source separation; Delay; Matched filters; Multiaccess communication; Multiuser detection; Sensor arrays; Source separation; Transmitters; Vectors; White noise;
Conference_Titel :
Vehicular Technology Conference, 2001. VTC 2001 Spring. IEEE VTS 53rd
Conference_Location :
Rhodes
Print_ISBN :
0-7803-6728-6
DOI :
10.1109/VETECS.2001.945013