DocumentCode :
2627922
Title :
Performance of Joint Power Control and Beamforming in WCDMA considering real Multiple Access Interferences
Author :
Botella, C. ; Pinero, Gema ; González, A. ; Faus, P. ; Cardona, N.
Author_Institution :
Inst. of Telecommun. & Multimedia Applications, Valencia Polytech Univ.
fYear :
2005
fDate :
7-7 Sept. 2005
Firstpage :
465
Lastpage :
469
Abstract :
Joint power control and optimal beamforming (JPCOB) algorithms are very promising techniques in order to implement MIMO configurations in WCDMA systems as, for example, 3G. In this paper we have used a JPCOB algorithm that supports multiple antennas in the node B, but with different arrangements of the antenna array position: we compare the classic approach of a central location in contrast with a new distributed configuration. For both cell configurations a multiple access interference (MAI) model has been proposed based on power delay profile (PDP) of the physical channel. Different code assignment schemes based on this MAI model have been proposed in order to increase cell capacity. Simulation results have shown that schemes that minimize total MAI inside the cell can improve probability of admission more than 10% for medium load with respect to the natural order assignment of OVSF codes
Keywords :
3G mobile communication; MIMO systems; antenna arrays; broadband networks; code division multiple access; power control; radiofrequency interference; telecommunication congestion control; wireless channels; Joint power control and optimal beamforming; MIMO configurations; WCDMA; admission probability; antenna array position; code assignment schemes; multiple access interference; multiple access interferences; power delay profile; Antenna arrays; Array signal processing; Downlink; MIMO; Mobile antennas; Multiaccess communication; Multimedia systems; Multiple access interference; Power control; Transmitting antennas;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Wireless Communication Systems, 2005. 2nd International Symposium on
Conference_Location :
Siena
Print_ISBN :
0-7803-9206-X
Type :
conf
DOI :
10.1109/ISWCS.2005.1547744
Filename :
1547744
Link To Document :
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