Adaptive multi-rate multi-code CDMA systems

Author

Schotten, Hans Dieter ; Elders-Boll, Harald ; Busboom, Axel

Author_Institution

Inst. of Commun. Eng., Aachen Univ. of Technol., Germany

Volume

2

fYear

1998

fDate

18-21 May 1998

Firstpage

782

Abstract

To support variable data-rates multi-code code-division multiple-access (MC-CDMA) systems have been proposed for mobile communications. They allow the support of variable source data-rates by variation of the set of spreading-sequences assigned to each user. The impact of the sequence-design on the system performance is considered. For the antifading capability and the multiuser interference performance measures are derived. We describe sequence-sets which are almost optimum with respect to these parameters and which allow each user to change its data-rate without affecting the other users

Keywords

adaptive systems; code division multiple access; fading; land mobile radio; radiofrequency interference; sequences; spread spectrum communication; BER; DS-CDMA; MC-CDMA; adaptive multi-rate systems; antifading capability; code-division multiple-access; decoding; mobile communications; multi-code CDMA systems; multiuser interference performance measures; sequence-design; sequence-sets; spreading-sequences; system performance; variable data-rates; Channel capacity; Data engineering; Decoding; Fading; Interference; Mobile communication; Multiaccess communication; Multicarrier code division multiple access; System performance; Transmitters;

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.1998.683688

Filename

683688