DocumentCode :
428033
Title :
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
Link To Document :
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