Design and performance analysis of a noncoherent code tracking loop for DS-CDMA systems

Author

Lee, Kyung-Joon ; Park, Hyung-Rae ; Chae, Soo-Whan

Author_Institution

Mobile Telecommun. Res. Div., ETRI, Taejon, South Korea

Volume

2

fYear

1998

fDate

18-21 May 1998

Firstpage

1481

Abstract

The performance of the noncoherent code tracking loop designed at the baseband for CDMA applications is analyzed in detail. An analytical closed-form formula for steady-state jitter variance is derived as a function of the pulse shaping filter, timing offset, signal-to-interference ratio, and loop filter coefficients. The performance of the designed tracking loop is evaluated for various design parameters together with verification by computer simulations. Finally, the degradation of BER performance due to timing errors is also investigated for the IMT-2000 system designed by the ETRI

Keywords

code division multiple access; error statistics; filtering theory; jitter; land mobile radio; pseudonoise codes; pulse shaping; radio tracking; radiofrequency interference; spread spectrum communication; timing; BER performance degradation; DS-CDMA systems; ETRI; IMT-2000 system; analytical closed-form formula; baseband; computer simulations; design parameters; loop filter coefficients; noncoherent code tracking loop; performance analysis; pulse shaping filter; signal-to-interference ratio; steady-state jitter variance; timing errors; timing offset; Analysis of variance; Application software; Baseband; Filters; Jitter; Multiaccess communication; Performance analysis; Signal analysis; Steady-state; Tracking loops;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 1998. VTC 98. 48th IEEE

Conference_Location

Ottawa, Ont.

ISSN

1090-3038

Print_ISBN

0-7803-4320-4

Type

conf

DOI

10.1109/VETEC.1998.686529

Filename

686529