Turbo Detection for the Uplink of CP-Assisted DS-CDMA Systems

Author

Silva, Paulo ; Dinis, Rui

Author_Institution

Algarve Univ., Faro

fYear

2007

fDate

22-24 Aug. 2007

Firstpage

170

Lastpage

173

Abstract

In this paper we consider the use of CP-assisted (Cyclic Prefix) DS-CDMA schemes (Direct Sequence Code Division Multiple Access) in the uplink of broadband wireless systems. We present frequency-domain receivers that combine turbo equalization and multiuser detection. The performance of the proposed receiver can be close to the single-user MFB (Matched Filter Bound), even for fully loaded systems and severely time-dispersive channels. Moreover, our receivers can also cope with overloaded scenarios.

Keywords

code division multiple access; cyclic codes; dispersive channels; equalisers; matched filters; multiuser detection; radio links; spread spectrum communication; turbo codes; broadband wireless system; cyclic prefix DS-CDMA system; direct sequence code division multiple access; frequency-domain receiver; multiuser detection; single-user matched filter bound; time-dispersive channel; turbo detection; turbo equalization; Bit rate; Broadband amplifiers; Direct-sequence code-division multiple access; Frequency synchronization; Interference; Iterative decoding; Matched filters; Multiaccess communication; Multiuser detection; Power amplifiers;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, Computers and Signal Processing, 2007. PacRim 2007. IEEE Pacific Rim Conference on

Conference_Location

Victoria, BC

Print_ISBN

978-1-4244-1189-4

Electronic_ISBN

1-4244-1190-4

Type

conf

DOI

10.1109/PACRIM.2007.4313204

Filename

4313204