A multipath searcher with the hybrid CDMA interference canceller

Author

Sun, S. ; Sugimoto, H. ; Rasmussen, L.K. ; Lim, T.J.

Author_Institution

Centre for Wireless Commun., Singapore

Volume

2

fYear

2000

fDate

2000

Firstpage

931

Abstract

In this paper we consider the multipath searcher in a multiuser CDMA system. The conventional configuration where the searcher uses the received signal as its input is studied and a new configuration in which the searcher uses the hybrid interference canceller (HIC) output is proposed. Due to MAI reduction in the the searcher´s input signal, a much better performance is obtained in the new configuration. For a medium-loaded system, simulation results show that the new configuration increases the detection probability by about 8-40%, and the acquisition-based capacity by 260-360% when the targeted acquisition probability is set to 95%

Keywords

cellular radio; code division multiple access; interference suppression; multipath channels; multiuser channels; signal detection; CDMA system; MAI reduction; acquisition-based capacity; detection probability; hybrid interference canceller; multipath searcher; multiuser detection; simulation results; AWGN; Capacity planning; Delay estimation; Detectors; Hybrid integrated circuits; Interference cancellation; Multiaccess communication; Multiple access interference; Silicon carbide; Tracking loops;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference Proceedings, 2000. VTC 2000-Spring Tokyo. 2000 IEEE 51st

Conference_Location

Tokyo

ISSN

1090-3038

Print_ISBN

0-7803-5718-3

Type

conf

DOI

10.1109/VETECS.2000.851261

Filename

851261