Multipath fading effects on wide-band DS/CDMA signals: analysis, simulation, and measurements

Author

Jalloul, Louay M A ; Holtzman, Jack M.

Author_Institution

Wireless Inf. Network Lab., Rutgers Univ., Piscataway, NJ, USA

Volume

43

Issue

3

fYear

1994

fDate

8/1/1994 12:00:00 AM

Firstpage

801

Lastpage

807

Abstract

Transmitting signals over multipath fading channels causes distortions and variations at the receiver. For narrow-band signals, the envelope of the received signal is well characterized by a Rayleigh random process. Rayleigh fading causes large variations in the signal envelope. For wide-band signals, the effect of Rayleigh fading is mitigated. The paper considers the effect of receiver processing on the mitigation effect for wide-band DS/CDMA signals. The mitigation effect is shown by a reduction of the coefficient of variation of the received power as a function of bandwidth spreading. The parameters chip rate, processing gain, and the number of multipath components tracked are investigated for their effect upon the mitigation-the mitigation effect is sensitive to combinations of these parameters

Keywords

code division multiple access; digital simulation; fading; signal processing; telecommunication channels; Rayleigh random process; analysis; bandwidth spreading; chip rate; distortion; mitigation effect; multipath components; multipath fading channels; narrow-band signals; processing gain; received signal; receiver processing; signal envelope; simulation; wide-band DS/CDMA signals; wide-band signals; Bandwidth; Distortion; Fading; Multiaccess communication; Narrowband; Random processes; Rayleigh channels; Signal analysis; Signal processing; Wideband;

fLanguage

English

Journal_Title

Vehicular Technology, IEEE Transactions on

Publisher

ieee

ISSN

0018-9545

Type

jour

DOI

10.1109/25.312764

Filename

312764