An efficient tracking loop for DS/CDMA systems in multipath fading channels

Author

Guo, Jinghong ; You, Xiaohu ; Cheng, Shlxin

Author_Institution

Nat. Mobile Commun. Res. Lab., Southeast Univ., Nanjing, China

Volume

4

fYear

1999

fDate

1999

Firstpage

2004

Abstract

PN (pseudo-noise) code tracking is the most challenging task in a direct sequence code division multiplex access (DS/CDMA) system for cellular mobile communication systems. In this paper, the gravity of energy windows (GEW) tracking loop of the time and frequency uncertainty of the received signal is investigated, and the GEW´s analytical results in a multipath fading channel are introduced. The GEW tracking loop exploits the inherent multipath diversity of the channel, and has better performance than a single-path when working in multipath fading environments

Keywords

cellular radio; code division multiple access; fading channels; multipath channels; pseudonoise codes; spread spectrum communication; tracking; DS/CDMA systems; GEW; PN code tracking; cellular mobile communication systems; direct sequence code division multiplex access; efficient tracking loop; frequency uncertainty; gravity of energy windows; multipath diversity; multipath fading channels; pseudo-noise code tracking; time uncertainty; tracking loop; Autocorrelation; Bandwidth; Delay; Fading; Feeds; Frequency; Multiaccess communication; Random processes; Random sequences; Tracking loops;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 1999. VTC 1999 - Fall. IEEE VTS 50th

Conference_Location

Amsterdam

ISSN

1090-3038

Print_ISBN

0-7803-5435-4

Type

conf

DOI

10.1109/VETECF.1999.797288

Filename

797288