Title :
Turbo Detection for the Uplink of CP-Assisted DS-CDMA Systems
Author :
Silva, Paulo ; Dinis, Rui
Author_Institution :
Algarve Univ., Faro
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;
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
DOI :
10.1109/PACRIM.2007.4313204
