Title :
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
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;
Conference_Titel :
EUROCOMM 2000. Information Systems for Enhanced Public Safety and Security. IEEE/AFCEA
Conference_Location :
Munich
Print_ISBN :
0-7803-6323-X
DOI :
10.1109/EURCOM.2000.874805
