Successive interference cancellation in multiple data rate DS/CDMA systems

Author

Johansson, Ann-Louise ; Svensson, Arne

Author_Institution

Dept. of Inf. Theory, Chalmers Univ. of Technol., Goteborg, Sweden

Volume

2

fYear

1995

fDate

25-28 Jul 1995

Firstpage

704

Abstract

Analyses a successive interference cancellation (IC) scheme for M-ary QAM modulation in direct sequence code division multiple access (DS/CDMA) systems. The performance under Rayleigh fading is analysed for single modulation systems and systems employing either of two different methods, mixed modulation or parallel channels, for handling multiple data rates. The authors show that the successive IC scheme for higher modulation together with mixed modulation or parallel channels give a considerable increase in performance and flexibility compared to single modulation systems employing a conventional detector

Keywords

Rayleigh channels; code division multiple access; fading; interference suppression; land mobile radio; pseudonoise codes; quadrature amplitude modulation; radiofrequency interference; spread spectrum communication; M-ary QAM modulation; Rayleigh fading; direct sequence code division multiple access; mixed modulation; multiple data rate DS/CDMA systems; parallel channels; performance; single modulation systems; successive interference cancellation; AWGN; Baseband; Decoding; Delay effects; Detectors; Gaussian noise; Integrated circuit noise; Multiaccess communication; Noise cancellation; Quadrature amplitude modulation;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 1995 IEEE 45th

Conference_Location

Chicago, IL

ISSN

1090-3038

Print_ISBN

0-7803-2742-X

Type

conf

DOI

10.1109/VETEC.1995.504959

Filename

504959