SPC11-3: Group-Based Block Linear Successive Interference Cancellation For DS-CDMA

Author

Pelletier, Benoit ; Champagne, Benoit

Author_Institution

Dept. of Electr. & Comput. Eng., McGill Univ., Montreal, QC

fYear

2006

fDate

Nov. 27 2006-Dec. 1 2006

Firstpage

1

Lastpage

5

Abstract

Mobile communication systems based on DS-CDMA suffer from multiple access interference (MAI), which limits the system capacity. Several techniques, such as beamforming with multiple antennas and multiuser detection (MUD), have proved to be effective to mitigate MAI. To reduce the complexity of MUD, it has been proposed to process users in smaller groups. The interference between group is then reduced using beamforming with smart antennas. In this paper, a new group-based block linear successive interference cancellation structure is developed. The structure is shown to provide BER performance close to the full space-time MUD at a lower computational cost.

Keywords

code division multiple access; interference suppression; mobile communication; spread spectrum communication; BER performance; DS CDMA; beamforming; group based block linear successive interference cancellation; lower computational cost; mobile communication systems; multiple access interference; multiple antennas; multiuser detection; Array signal processing; Interference cancellation; Linear antenna arrays; Matched filters; Mobile communication; Multiaccess communication; Multiple access interference; Multiuser detection; Nonlinear filters; Silicon carbide;

fLanguage

English

Publisher

ieee

Conference_Titel

Global Telecommunications Conference, 2006. GLOBECOM '06. IEEE

Conference_Location

San Francisco, CA

ISSN

1930-529X

Print_ISBN

1-4244-0356-1

Electronic_ISBN

1930-529X

Type

conf

DOI

10.1109/GLOCOM.2006.593

Filename

4151223