Blind multiuser equalization for time-varying channels

Author

Artes, H. ; Hlawatsch, F.

Author_Institution

Inst. of Commun. & Radio-Frequency Eng., Wien Univ., Austria

fYear

2001

fDate

2001

Firstpage

102

Lastpage

105

Abstract

We propose two methods for deterministic blind equalization of linear time-varying (LTV) channels with multiple users. Our approach is based on an LTI (linear time invariant) multichannel representation of LTV channels. With the first method, the multiuser channel is equalized up to an instantaneous mixture that is subsequently resolved by means of a POCS (projections onto convex sets) algorithm. The second method performs the entire equalization (including resolution of the instantaneous mixture) by means of a POCS algorithm. Simulation results demonstrate the good performance of our methods

Keywords

blind equalisers; matrix algebra; multiuser channels; signal resolution; time-varying channels; LTI multichannel representation; blind equalization; instantaneous mixture resolution; linear time invariant multichannel representation; linear time-varying channels; multiuser channel; projections onto convex sets algorithm; Art; Blind equalizers; Doppler shift; Electronic mail; Europe; Filters; Multiuser channels; Neodymium; Scattering parameters; Time-varying channels;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications, 2001. (SPAWC '01). 2001 IEEE Third Workshop on Signal Processing Advances in

Conference_Location

Taiwan

Print_ISBN

0-7803-6720-0

Type

conf

DOI

10.1109/SPAWC.2001.923854

Filename

923854