Performance of successive interference cancellation scheme considering the power control step size in DS/CDMA systems

Author

Lee, Chiho ; Sohraby, Khosrow ; Kim, Kiseon

Author_Institution

Sch. of Comput. & Eng., Univ. of Missouri, Kansas City, MO, USA

Volume

2

fYear

2004

fDate

26-29 Sept. 2004

Firstpage

779

Abstract

In this paper, we investigate the effects of selecting the power control step size on the performance of successive interference cancellation schemes. System performance in terms of the outage probability and other-cell interference is examined with the power control convergence speed for different selections of the power control step sizes. The simulation results show that the larger power control step size produces more other-cell interference for the large number of concurrent users. And, the outage performance is more dependent on the power control step size for the smaller number of concurrent users and the smaller value of groupwise factors. Conclusively, the power control step size of about 0.4dB can be an optimum selection under the simulated environment in the sense of both system performance improvement and fast power control convergence.

Keywords

adjacent channel interference; cellular radio; code division multiple access; convergence of numerical methods; interference suppression; power control; probability; spread spectrum communication; telecommunication control; DS/CDMA systems; convergence speed; other-cell interference; outage probability; performance; power control step size; successive interference cancellation; Bit error rate; Cities and towns; Convergence; Interference cancellation; Multiaccess communication; Multiple access interference; Power control; Signal detection; Silicon carbide; System performance;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2004. VTC2004-Fall. 2004 IEEE 60th

ISSN

1090-3038

Print_ISBN

0-7803-8521-7

Type

conf

DOI

10.1109/VETECF.2004.1400126

Filename

1400126