Title :
Automatic frequency control for balanced QPSK DS-SS with pilot signal
Author :
Zhu, Fan ; Lim, Myoung Seob
Author_Institution :
Dept. of Inf. & Commun. Eng., Chonbuk Nat. Univ., South Korea
Abstract :
In order to compensate the degradation caused by the frequency shift under the Rayleigh fading with vehicular mobility, it is necessary to devise a efficient phase estimation method. In this paper, three old methods and complex number method are presented and compared. It is concluded at last that the combination complex number method is better than other old methods which have some limited conditions.
Keywords :
Rayleigh channels; automatic frequency control; code division multiple access; frequency shift keying; number theory; phase estimation; quadrature phase shift keying; spread spectrum communication; vehicle dynamics; DS-SS; Rayleigh fading; automatic frequency control; balanced QPSK; complex number method; frequency shift; phase estimation method; pilot signal; vehicular mobility; Additive white noise; Automatic frequency control; Baseband; Degradation; Fading; Finite impulse response filter; Phase estimation; Power system modeling; Quadrature phase shift keying; Rayleigh channels;
Conference_Titel :
Information, Communications and Signal Processing, 2003 and Fourth Pacific Rim Conference on Multimedia. Proceedings of the 2003 Joint Conference of the Fourth International Conference on
Print_ISBN :
0-7803-8185-8
DOI :
10.1109/ICICS.2003.1292592
