DocumentCode :
1907236
Title :
Asymptotic multiuser efficiency for a two-states CDMA system
Author :
Re, Enrico ; Mucchi, Lorenzo ; Ronga, Luca
Author_Institution :
DET Dept., Florence Univ., Italy
Volume :
6
fYear :
2001
fDate :
25-29 Nov. 2001
Firstpage :
3519
Abstract :
The use of CDMA makes third generation wireless systems interference limited rather than noise limited. The research for new methods to reduce interference and increase efficiency lead us to formulate a signaling method where fast impulsive silence states are mapped on zero-energy symbols. The theoretical formulation of the optimum receiver is reported and the asymptotic multiuser efficiency has been derived and applied to the optimum two-states receiver. Numerical comparisons have been performed to show the advantages of the proposed scheme over the traditional single state CDMA transmission. Several operating scenarios have been numerically analyzed and the results are reported in the paper.
Keywords :
code division multiple access; interference suppression; mobile radio; multiuser channels; optimisation; personal communication networks; telecommunication signalling; CDMA; UMTS; asymptotic multiuser efficiency; impulsive silence states; interference reduction; optimum two-states receiver; signaling; third generation wireless systems; wireless personal communications; zero-energy symbols; 3G mobile communication; Bandwidth; Energy management; Interference; Multiaccess communication; Noise generators; Power generation economics; Radio link; Radio transmitters; Wireless communication;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Global Telecommunications Conference, 2001. GLOBECOM '01. IEEE
Conference_Location :
San Antonio, TX, USA
Print_ISBN :
0-7803-7206-9
Type :
conf
DOI :
10.1109/GLOCOM.2001.966336
Filename :
966336
Link To Document :
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