Title :
Matched filter based synchronizer design for rapid synchronization of packet data transmissions in DS-CDMA personal communications systems
Author :
Sun, Songsong ; Krzymien, Witold A.
Author_Institution :
Alberta Univ., Edmonton, Alta., Canada
Abstract :
This paper considers two types of digital matched filter-based synchronizers. One is applied with biphase spreading, and the other with quadri-phase spreading. The synchronizers are primarily designed for application on reverse links of the IS-95 type systems, but with minor modifications they can also be used in other DS-CDMA systems. Probabilities of correct acquisition and false alarm for both Gaussian and Rayleigh fading channels are derived. The differential approach is considered to reduce the number of required operations. Numerical results are presented when a specially designed packet synchronization preamble is used, and the mean acquisition time is evaluated
Keywords :
Gaussian channels; Rayleigh channels; access protocols; cellular radio; code division multiple access; data communication; digital filters; fading; land mobile radio; matched filters; packet radio networks; personal communication networks; probability; pseudonoise codes; radio links; spread spectrum communication; synchronisation; DS-CDMA personal communications systems; Gaussian channels; IS-95 type systems; Rayleigh fading channels; biphase spreading; cellular wireless systems; correct acquisition probability; differential approach; digital filter; false alarm probability; matched filter based synchronizer design; mean acquisition time; packet data transmissions; packet synchronization preamble; performance analysis; quadriphase spreading; reverse links; Binary phase shift keying; Data communication; Digital filters; Fading; Frequency synchronization; Matched filters; Multiaccess communication; Quadrature phase shift keying; Sampling methods; Sun;
Conference_Titel :
Communications, Computers and Signal Processing, 1997. 10 Years PACRIM 1987-1997 - Networking the Pacific Rim. 1997 IEEE Pacific Rim Conference on
Conference_Location :
Victoria, BC
Print_ISBN :
0-7803-3905-3
DOI :
10.1109/PACRIM.1997.619890
