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Titolo: CDMA system design through asymptotic analysis
Autore: Biglieri, E; Caire, G; Taricco, G;
 Indirizzi:
 Politecn Turin, Dipartimento Elettron, I10129 Turin, Italy Politecn Turin Turin Italy I10129 imento Elettron, I10129 Turin, Italy
 Titolo Testata:
 IEEE TRANSACTIONS ON COMMUNICATIONS
fascicolo: 11,
volume: 48,
anno: 2000,
pagine: 1882  1896
 SICI:
 00906778(200011)48:11<1882:CSDTAA>2.0.ZU;2U
 Fonte:
 ISI
 Lingua:
 ENG
 Soggetto:
 INTERFERENCE; RADIO;
 Keywords:
 CDMA system capacity; linear receivers; multirate CDMA; random spreading;
 Tipo documento:
 Article
 Natura:
 Periodico
 Settore Disciplinare:
 Engineering, Computing & Technology
 discip_EC
 Citazioni:
 24
 Recensione:
 Indirizzi per estratti:
 Indirizzo: Biglieri, E Politecn Turin, Dipartimento Elettron, I10129 Turin, Italy Politecn Turin Turin Italy I10129 ron, I10129 Turin, Italy



 Citazione:
 E. Biglieri et al., "CDMA system design through asymptotic analysis", IEEE COMMUN, 48(11), 2000, pp. 18821896
Abstract
We use results from the asymptotic analysis of codedivision multiple access with random spreading as a tool for gaining insight and deriving design guidelines on practical system issues, inspired by the current UMTS/IMT2000standardization process. In particular, we consider a simple synchronous singlecell system with perfect power control and linear detection, and we examine the following: 1) the optimal tradeoff between coding rate and spreading gain and 2) the comparison of different multirate schemes. Our analysis shows that, for the sake of system spectral efficiency maximization, there exists a threshold Eb/N0 below which the singleuser matched filter (SUMF) is optimal (within the limits of our system model). As far as multirate schemes are concerned, we show that multicode and variablespreading with SUMF detection are equivalent, while the former is uniformly better than the latter with linear minimummeansquare error detection. Variablespreading can perform very close to multicode if highrate users are detected by observing the whole "lowrate" symbol interval. Finally, we compare the capacity regions of the multimodulation and multicode schemes versusthe Eb/N0 ratio.
ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 08/07/20 alle ore 23:58:54