Vandermonde-Lagrange mutually orthogonal flexible transceivers for blind CDMA in unknown multipath

Author

Wang, Zhengdao ; Scnglione, A. ; Giannakis, Georgios B. ; Barbavossa, S.

Author_Institution

Dept. of Electr. & Comput. Eng., Minnesota Univ., Minneapolis, MN, USA

fYear

1999

fDate

1999

Firstpage

42

Lastpage

45

Abstract

A mutually-orthogonal usercode-receiver (AMOUR) system was previously proposed to guarantee identifiability of transmitted symbols irrespective of channel nulls in addition to offering deterministic multiuser interference (MUI) elimination and low complexity transceivers. Motivated by the desire to equip the AMOUR with added flexibility, we develop in this paper a Vandermonde-Lagrange AMOUR system that achieves the same MUI eliminating property and offers additional advantages in the code assignment procedure. We also derive blind adaptive equalizers within the VL-AMOUR framework and illustrate via simulations that they perform very close to the theoretical bound derived with perfect channel information

Keywords

adaptive equalisers; blind equalisers; code division multiple access; interference suppression; land mobile radio; multipath channels; multiuser channels; radiofrequency interference; transceivers; Vandermonde-Lagrange AMOUR system; Vandermonde-Lagrange mutually orthogonal transceivers; blind CDMA; blind adaptive equalizers; channel nulls; code assignment; deterministic MUI elimination; flexible transceivers; low complexity transceivers; multiuser interference suppression; perfect channel information; simulations; theoretical bound; third-generation wireless mobile systems; transmitted symbols identification; 3G mobile communication; Adaptive equalizers; Baseband; Blind equalizers; Finite impulse response filter; Interference suppression; Modeling; Multiaccess communication; Transceivers; Wideband;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing Advances in Wireless Communications, 1999. SPAWC '99. 1999 2nd IEEE Workshop on

Conference_Location

Annapolis, MD

Print_ISBN

0-7803-5599-7

Type

conf

DOI

10.1109/SPAWC.1999.783014

Filename

783014