Title :
A spectral method for periodic estimation of the PN sequences in lower SNR DS-CDMA signals
Author :
Tianqi, Chang ; Zhengzhong, Zhou
Author_Institution :
Inst. of Commun. & Inf. Eng, UEST of China, Chengdu, China
fDate :
29 June-1 July 2002
Abstract :
We propose a new method based on the reprocessing of the power spectral density of direct sequence code division multiple access (DS-CDMA) signals, it can solve the difficult problem of periodic detection and estimation of the PN sequence in DS-CDMA signals. The results of computer simulation show that these methods can work well on the lower signal-to-noise ratio (SNR) input signals.
Keywords :
code division multiple access; parameter estimation; random sequences; signal detection; spectral analysis; spread spectrum communication; DS-CDMA signals; PN sequences; SNR; direct sequence code division multiple access; periodic detection; periodic estimation; power spectral density; Additive white noise; Computer simulation; Demodulation; Direct-sequence code-division multiple access; Interference; Multiaccess communication; Multiuser detection; Resists; Signal to noise ratio; Spread spectrum communication;
Conference_Titel :
Communications, Circuits and Systems and West Sino Expositions, IEEE 2002 International Conference on
Print_ISBN :
0-7803-7547-5
DOI :
10.1109/ICCCAS.2002.1180669
