Interference cancellation in multi-cell CDMA systems

Author

Lu, Chun Chian

Author_Institution

Comput. & Commun. Res. Lab., Ind. Technol. Res. Inst., Hsinchu, Taiwan

Volume

5

fYear

2002

fDate

15-18 Sept. 2002

Firstpage

2009

Abstract

Multiple access and intersymbol interference of CDMA systems within a cell make single user detection error prone. The perturbation method of multiuser detection (MUD) can correct this. In addition to the single cell interference there is adjacent cell interference (ACI), which can be reduced by a set of new codes with interference reduction window (IRW) and exclusive even/odd code assignment to adjacent cells. Simulation shows that the MUD receiver significantly outperforms RAKE receivers. The new methods simplify the CDMA systems and improve their performance.

Keywords

adjacent channel interference; cellular radio; channel allocation; channel coding; code division multiple access; interference suppression; intersymbol interference; multiuser detection; perturbation techniques; radio receivers; ACI; MUD receiver; adjacent cell interference; even/odd code assignment; interference cancellation; interference reduction window; intersymbol interference; multi-cell CDMA systems; multiuser detection; performance; perturbation method; simulation; single cell interference; Computer errors; Delay effects; Fading; Frequency synchronization; Interference cancellation; Multiaccess communication; Multipath channels; Multiple access interference; Multiuser detection; Perturbation methods;

fLanguage

English

Publisher

ieee

Conference_Titel

Personal, Indoor and Mobile Radio Communications, 2002. The 13th IEEE International Symposium on

Print_ISBN

0-7803-7589-0

Type

conf

DOI

10.1109/PIMRC.2002.1046496

Filename

1046496