A subspace method for signature waveform estimation and detection in dispersive CDMA channels

Author

Zhang, Yanrong ; Bi, Guoan ; Ng, Boon Poh ; Kot, A.C.

Author_Institution

Sch. of Electr. & Electron. Eng, Nanyang Technol. Univ., Singapore

fYear

2000

fDate

2000

Firstpage

224

Lastpage

227

Abstract

We consider the problem of signature waveform estimation and detection in a dispersive CDMA channel in the presence of multiple access interference (MAI). A subspace training method for signature waveform estimation is proposed. By using this method the signature waveform can be estimated given only a small number of training symbols of the desired user. Simulation results show that the proposed method offers significant performance gain over the conventional matched filter receiver and it is near-far resistant

Keywords

code division multiple access; dispersive channels; land mobile radio; multiuser channels; parameter estimation; radiofrequency interference; signal detection; dispersive CDMA channels; matched filter receiver; multiple access interference; near-far resistant receiver; performance; signature waveform detection; signature waveform estimation; simulation results; subspace training method; third-generation mobile telephony; training symbols; wireless communications; Bismuth; Code division multiplexing; Detectors; Dispersion; Intersymbol interference; Matched filters; Multiaccess communication; Multiple access interference; Performance gain; Telephony;

fLanguage

English

Publisher

ieee

Conference_Titel

EUROCOMM 2000. Information Systems for Enhanced Public Safety and Security. IEEE/AFCEA

Conference_Location

Munich

Print_ISBN

0-7803-6323-X

Type

conf

DOI

10.1109/EURCOM.2000.874805

Filename

874805