Title :
Studies on a new rapid hybrid acquisition system in MC-CDMA systems
Author :
Zhang, Dezhou ; Wang, Tongqing
Author_Institution :
Key Lab. for Optoelectron. Technol. & Syst. of the Minist. of Educ., Chongqing Univ., Chongqing
Abstract :
On the basis of the principle of the basic correlation property of PN sequence, a new rapid hybrid acquisition system is proposed in this paper, which is based on adaptive decision thresholds in MC-CDMA systems .The mathematics models and the detail performance analysis of this hybrid acquisition system are put forward in no fading AWGN channel and in Rayleigh fading channel. Computer simulations show the amelioration system proposed in this paper has a much shorter acquisition mean time than that of the basic scheme. So a conclusion may be drawn the amelioration scheme has a superior comprehensive synchronization performance to that of the basic scheme.
Keywords :
Rayleigh channels; code division multiple access; pseudonoise codes; synchronisation; MC-CDMA systems; PN sequence; Rayleigh fading channel; amelioration system; fading AWGN channel; rapid hybrid acquisition system; synchronization performance; Adaptive control; Automation; Computer science education; Educational institutions; Educational technology; Intelligent control; Mathematical model; Mathematics; Multicarrier code division multiple access; Programmable control; Adaptive Decision Thresholds; Hybrid Acquisition; the Mean Acquisition Time;
Conference_Titel :
Intelligent Control and Automation, 2008. WCICA 2008. 7th World Congress on
Conference_Location :
Chongqing
Print_ISBN :
978-1-4244-2113-8
Electronic_ISBN :
978-1-4244-2114-5
DOI :
10.1109/WCICA.2008.4593868
