Title :
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
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;
Conference_Titel :
Spread Spectrum Techniques and Applications (ISITA), 2010 IEEE 11th International Symposium on
Conference_Location :
Taichung
Print_ISBN :
978-1-4244-6013-7
Electronic_ISBN :
1943-7439
DOI :
10.1109/ISSSTA.2010.5651697
