Performance of PN code acquisition in a DS/CDMA overlay environment with imperfect power control

Author

Kim, Jin Young ; Lee, Jae Hong

Author_Institution

Sch. of Electr. Eng., Seoul Nat. Univ., South Korea

Volume

3

fYear

1997

fDate

4-7 May 1997

Firstpage

2108

Abstract

The performance of PN code acquisition is analyzed for a DS/CDMA overlay system with imperfect power control. The acquisition performance is evaluated in terms of the mean acquisition time using a state transition diagram for the acquisition process. For application in DS/CDMA cellular environments, the multiple access interference (MAI) and the imperfection of the power control are taken into account in the analysis of the acquisition performance. The imperfect power control is considered by modelling the power of each user to be log-normally distributed about the nominal received power. A narrowband user is modelled as a narrowband interference located at a fraction of the CDMA user´s bandwidth. The analysis in this paper can be applied to practical situations in a DS/CDMA overlay environment

Keywords

Rician channels; cellular radio; code division multiple access; fading; filtering theory; interference suppression; land mobile radio; log normal distribution; multipath channels; power control; pseudonoise codes; radio receivers; radiofrequency interference; spread spectrum communication; telecommunication control; DS/CDMA overlay environment; MAI; PN code acquisition performance; acquisition performance; bandwidth; cellular environments; imperfect power control; interference suppression filter; log normal distribution; mean acquisition time; multipath Rician fading channel; multiple access interference; narrowband interference; narrowband user; nominal received power; receiver; state transition diagram; Bandwidth; Base stations; Frequency synchronization; Interference; Multiaccess communication; Narrowband; Performance analysis; Power control; Radio frequency; Signal processing;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 1997, IEEE 47th

Conference_Location

Phoenix, AZ

ISSN

1090-3038

Print_ISBN

0-7803-3659-3

Type

conf

DOI

10.1109/VETEC.1997.605978

Filename

605978