A modified blind adaptive multiuser CDMA detector

Author

You, Dunhua ; Lim, Teng Joon

Author_Institution

Center for Wireless Commun., Singapore

Volume

3

fYear

1998

fDate

2-4 Sep 1998

Firstpage

878

Abstract

We propose a modified blind adaptive multiuser detector. It is designed to surmount the problems that the blind adaptive detector of Honig, Madhow and Verdu (see IEEE Trans. Inform. Theory, vol.41, no.4, p.944-60, 1995) has in the multipath scenario. It needs to know the spreading code and timings of the significant multipath signals of the desired user, but is actually a “blinder” detector because it can still work when our timing knowledge is not accurate. Its performance in the case of wrong timing can be restored through signal subspace projection, assuming the estimation of the signal subspace using the received signal

Keywords

adaptive signal detection; code division multiple access; multipath channels; multiuser channels; spread spectrum communication; timing; modified blind adaptive multiuser CDMA detector; multipath signals; multiple access interference; received signal; signal subspace estimation; signal subspace projection; spreading code; timings; Autocorrelation; Degradation; Detectors; Frequency; Multiaccess communication; Multiple access interference; Multiuser detection; Signal restoration; Timing; Wireless communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Spread Spectrum Techniques and Applications, 1998. Proceedings., 1998 IEEE 5th International Symposium on

Conference_Location

Sun City

Print_ISBN

0-7803-4281-X

Type

conf

DOI

10.1109/ISSSTA.1998.722504

Filename

722504