AMOUR-generalized multicarrier CDMA irrespective of multipath

Author

Giannakis, Georgios B. ; Wang, Zhengdao ; Scaglione, Anna ; Barbarossa, Sergio

Author_Institution

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

fYear

1999

fDate

6/21/1905 12:00:00 AM

Firstpage

965

Abstract

The suppression of multiuser interference (MUI) and mitigation of multipath effects constitute major challenges in the design of third-generation wireless mobile systems. Most wideband and multicarrier uplink CDMA schemes suppress MUI statistically in the presence of unknown multipath and impose restrictive and difficult to check conditions on the FIR channel nulls. Relying on symbol blocking, we design a mutually-orthogonal usercode-receiver (AMOUR) system for quasi-synchronous blind CDMA that eliminates MUI deterministically and mitigates fading irrespective of the unknown multipath and the adopted signal constellation. AMOUR converts a multiuser CDMA system into parallel single-user systems irrespective of multipath and guarantees identifiability of users´ symbols. Simulations reveal the generality, flexibility, and superior performance of AMOUR over competing alternatives

Keywords

channel bank filters; code division multiple access; fading channels; filtering theory; interference suppression; land mobile radio; multipath channels; multiuser channels; radio links; radio receivers; radiofrequency interference; transient response; AMOUR; FIR channel nulls; fading; filterbank model; generalized multicarrier CDMA; multicarrier uplink CDMA; multipath; multiuser CDMA system; multiuser interference suppression; mutually-orthogonal usercode-receiver system; parallel single-user systems; performance; quasi-synchronous blind CDMA; signal constellation; simulations; symbol blocking; third-generation wireless mobile systems; wideband uplink CDMA; Baseband; Constellation diagram; DSL; Fading; Finite impulse response filter; Frequency estimation; Interference suppression; Multiaccess communication; Multipath channels; Wideband;

fLanguage

English

Publisher

ieee

Conference_Titel

Global Telecommunications Conference, 1999. GLOBECOM '99

Conference_Location

Rio de Janeireo

Print_ISBN

0-7803-5796-5

Type

conf

DOI

10.1109/GLOCOM.1999.830229

Filename

830229