A novel differentially coherent PN code acquisition detector for DS-CDMA communication systems

Author

Tsai, Teng-Shih ; Lee, Chih-Hung

Author_Institution

Grad. Inst. of Electron. Eng. & Comput. Sci., Nat. Kinmen Inst. of Technol., Kinmen, Taiwan

fYear

2010

fDate

17-20 Oct. 2010

Firstpage

55

Lastpage

60

Abstract

Code synchronization is a critical step for fast and reliable code search in direct-sequence spread-spectrum (DS-SS) system. In this paper, we propose a novel differentially coherent (DC) detection scheme for rapid code acquisition over a fast Rayleigh fading mobile radio channel with frequency offset, and compare the performance with the conventional I-Q noncoherent detection scheme. Numerical results show that the proposed DC scheme outperforms the conventional I-Q noncoherent scheme.

Keywords

Rayleigh channels; code division multiple access; mobile radio; pseudonoise codes; spread spectrum communication; synchronisation; DS-CDMA communication system; DS-SS system; Rayleigh fading mobile radio channel; code search; code synchronization; differentially coherent PN code acquisition detector; direct-sequence code-division multiple-access system; direct-sequence spread-spectrum system; pseudonoise code; Artificial neural networks; Computational complexity; Correlation; Detectors; Fading; Multiaccess communication; Receivers; DS-CDMA; DS-SS; Differentially coherent; PN code Acquisition; synchronization;

fLanguage

English

Publisher

ieee

Conference_Titel

Spread Spectrum Techniques and Applications (ISITA), 2010 IEEE 11th International Symposium on

Conference_Location

Taichung

ISSN

1943-7439

Print_ISBN

978-1-4244-6013-7

Electronic_ISBN

1943-7439

Type

conf

DOI

10.1109/ISSSTA.2010.5651697

Filename

5651697