Analysis of hybrid, coherent FDMA/CDMA systems in Ricean multipath fading

Author

Foerster, Jeffrey R. ; Milstein, Laurence B.

Author_Institution

California Univ., San Diego, La Jolla, CA, USA

Volume

45

Issue

1

fYear

1997

fDate

1/1/1997 12:00:00 AM

Firstpage

15

Lastpage

18

Abstract

This paper extends the analysis presented by Eng and Milstein (see IEEE J. Select. Areas Commun., vol.12, no.5, p.938-951, 1994) of a hybrid frequency division multiple access/code-division multiple-access [FDMA/CDMA (F/CDMA)] system in a Rayleigh fading environment to include the presence of a direct-path component (i.e., Ricean fading). The results show that a “wideband” CDMA system out performs a hybrid system, although the combination of a specular component and an exponentially decaying multipath intensity profile (MIP) with a large decay factor may result in only a minimal degradation of system performance for a hybrid system

Keywords

Rician channels; code division multiple access; fading; frequency division multiple access; multipath channels; pseudonoise codes; spread spectrum communication; DS-CDMA; Rayleigh fading environment; Ricean fading; Ricean multipath fading; code division multiple access; decay factor; direct path component; exponentially decaying multipath intensity profile; frequency division multiple access; hybrid coherent FDMA/CDMA systems; specular component; system performance; wideband CDMA system; Bandwidth; Fading; Frequency conversion; Frequency division multiaccess; Multiaccess communication; Multipath channels; Multiple access interference; RAKE receivers; Rayleigh channels; White noise;

fLanguage

English

Journal_Title

Communications, IEEE Transactions on

Publisher

ieee

ISSN

0090-6778

Type

jour

DOI

10.1109/26.554279

Filename

554279