Multi-dwell architectures for DS-CDMA code acquisition in fading channels

Author

Caini, Carlo ; Corazza, Giovanni E. ; Vanelli-Coralli, Alessandro

Author_Institution

DEIS, Bologna Univ., Italy

Volume

1

fYear

2002

fDate

2002

Firstpage

214

Abstract

The problem of code synchronization for CDMA cellular networks, such as IS-95 or cdma2000, is addressed. A multi-dwell testing procedure is adopted and optimized in multiple dimensions. The effects of correlated fading, inter-chip interference, frequency offset, multiple-access interference, and noise are taken into account in the determination of false alarm and detection probabilities. Numerical and simulation results, in terms of time for correct acquisition, confirm the accuracy of the proposed approach and show the definitive advantage of multi-dwell architectures.

Keywords

cellular radio; code division multiple access; correlation methods; fading channels; multiuser channels; probability; radio networks; radiofrequency interference; signal detection; spread spectrum communication; synchronisation; CDMA cellular networks; CFAR criterion; DS-CDMA code acquisition; IS-95; cdma2000; code synchronization; correct acquisition time; correlated fading; fading channels; false alarm probability; false detection probability; frequency offset; inter-chip interference; multi-dwell architectures; multi-dwell testing procedure; multiple-access interference; noise; signal detection; simulation results; Computer architecture; Computer science; Fading; Frequency; Intelligent networks; Land mobile radio cellular systems; Multiaccess communication; Multiple access interference; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Spread Spectrum Techniques and Applications, 2002 IEEE Seventh International Symposium on

Print_ISBN

0-7803-7627-7

Type

conf

DOI

10.1109/ISSSTA.2002.1049317

Filename

1049317