Multiuser detection for downlink CDMA communications in multipath fading channels

Author

Wichman, Risto ; Hottinen, Ari

Author_Institution

NOKIA Res. Center, Finland

Volume

2

fYear

1997

fDate

4-7 May 1997

Firstpage

572

Abstract

We discuss and model the interference in downlink CDMA channels and consider the advantages of applying multiuser detection techniques in the mobile stations. We show that if the increased computational complexity is tolerable such advanced receiver techniques are likely to increase the capacity of the downlink channels considerably, especially when applied together with more accurate closed loop power control. Simulation results are presented assuming that orthogonal codes are used in each base station

Keywords

cellular radio; channel capacity; code division multiple access; codes; computational complexity; fading; interference suppression; land mobile radio; multipath channels; power control; radio links; radio receivers; radiofrequency interference; signal detection; telecommunication control; cellular radio; channel capacity; closed loop power control; computational complexity; downlink CDMA communications; interference; mobile stations; multipath fading channels; multiuser detection; orthogonal codes; receiver techniques; simulation results; Amplitude estimation; Base stations; Detectors; Downlink; Fading; Interference; Multiaccess communication; Multiuser detection; Power control; Proposals;

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.1997.600393

Filename

600393