Improved uplink cell capacity in CDMA systems using a new dynamic distribution algorithm

Author

Hendessi, F. ; Ghassemi, Kh ; Ghayoori, A. ; Gulliver, T.A.

Author_Institution

Dept. of Electr. & Comput. Eng., Isfahan Univ. of Technol., Iran

Volume

1

fYear

2004

fDate

26-29 Sept. 2004

Firstpage

714

Abstract

There is a direct relationship between user SIR (signal to interference ratio) and the capacity of DS-CDMA systems. Thus, effective power control is desirable in order to provide the required QOS to a maximum number of users. A dynamic distribution algorithm can be employed to balance the QOS delivered to different network regions. A new dynamic distribution algorithm is introduced here which deactivates some users to maintain the required SIR (and QOS) for the remaining users.

Keywords

cellular radio; channel capacity; code division multiple access; fading channels; multipath channels; power control; quality of service; spread spectrum communication; DS-CDMA system capacity; cellular systems; dynamic distribution algorithm; multipath fading channel; network region QOS balancing; power control; signal to interference ratio; uplink cell capacity; user SIR; user deactivation algorithm; Fading; Frequency division multiaccess; Heuristic algorithms; Interchannel interference; Multiaccess communication; Power control; Quality of service; Radiofrequency interference; Time division multiple access; Transmitters;

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.2004.1400101

Filename

1400101