Title :
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
fDate :
1/1/1997 12:00:00 AM
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;
Journal_Title :
Communications, IEEE Transactions on
