Consiglio Nazionale delle Ricerche

Tipo di prodottoArticolo in rivista
TitoloVLSI Implementation of a CDMA Blind Interference-Mitigating Detector
Anno di pubblicazione2001
Formato-
Autore/iL. Fanucci, E. Letta, R. De Gaudenzi, F. Giannetti, M. Luise
Affiliazioni autori1 CNR, 2 Universita' di Pisa, 3 European Space Agency, 4 Universita' di Pisa, 5 Universita' di Pisa
Autori CNR e affiliazioni
  • LUCA FANUCCI
Lingua/e-
AbstractThis paper presents the design and the main performance results of a single-ASIC implementation of the recently proposed extended complex-valued blind anchored interference-mitigating detector (EC-BAID) for code division multiple access (CDMA) transmission. Such a detector, which exhibits a remarkable robustness to multiple access interference, operates in blind mode, i.e., it only requires knowledge of the timing of the wanted user's signature code, and it is therefore very well-suited for integration into handheld single-user terminal demodulators. The implementation of the interference-mitigating detector is based on a patented optimized architecture which leads, in 0.25-ìm CMOS technology, to a roughly 25 Kgate plus 23-Kbit RAM single-chip ASIC supporting chip rates up to 4 Mchip/s with a maximum internal clock frequency of 32.768 MHz. The main design drivers are thoroughly discussed, and the relevant performance results are compared to the theoretical behavior. A possible extension to multirate CDMA systems adopting orthogonal variable spreading factor (OVSF) sequences is also addressed.
Lingua abstract-
Altro abstract-
Lingua altro abstract-
Pagine da179
Pagine a190
Pagine totali-
RivistaIEEE journal on selected areas in communications (Print)
Attiva dal 1983
Editore: Institute of Electrical and Electronics Engineers, - New York, NY.
Paese di pubblicazione: Stati Uniti d'America
Lingua: inglese
ISSN: 0733-8716
Titolo chiave: IEEE journal on selected areas in communications (Print)
Titolo proprio: IEEE journal on selected areas in communications (Print)
Titolo abbreviato: IEEE j. sel. areas commun. (Print)
Titoli alternativi:
  • Institute of Electrical and Electronics Engineers journal on selected areas in communications (Print)
  • I.E.E.E. journal on selected areas in communications (Print)
  • Selected areas in communications (Print)
Numero volume della rivista19
Fascicolo della rivista-
DOI-
Verificato da referee-
Stato della pubblicazione-
Indicizzazione (in banche dati controllate)-
Parole chiaveVLSI, CDMA
Link (URL, URI)-
Titolo parallelo-
Data di accettazione-
Note/Altre informazioni-
Strutture CNR
  • IEIIT — Istituto di elettronica e di ingegneria dell'informazione e delle telecomunicazioni
Moduli CNR-
Progetti Europei-
Allegati

    Dati storici
    I dati storici non sono modificabili, sono stati ereditati da altri sistemi (es. Gestione Istituti, PUMA, ...) e hanno solo valore storico.
    Area disciplinareElectrical & Electronics Engineering
    Area valutazione CIVRScienze e tecnologie per una società dell'informazione e della comunicazione
    Rivista ISIIEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS [06406J0]
    Descrizione sintetica del prodottoThis paper presents the design and the main performance results of a single-ASIC implementation of the recently proposed extended complex-valued blind anchored interference-mitigating detector (EC-BAID) for code division multiple access (CDMA) transmission. Such a detector, which exhibits a remarkable robustness to multiple access interference, operates in blind mode, i.e., it only requires knowledge of the timing of the wanted user's signature code, and it is therefore very well-suited for integration into handheld single-user terminal demodulators. The implementation of the interference-mitigating detector is based on a patented optimized architecture which leads, in 0.25-ìm CMOS technology, to a roughly 25 Kgate plus 23-Kbit RAM single-chip ASIC supporting chip rates up to 4 Mchip/s with a maximum internal clock frequency of 32.768 MHz. The main design drivers are thoroughly discussed, and the relevant performance results are compared to the theoretical behavior. A possible extension to multirate CDMA systems adopting orthogonal variable spreading factor (OVSF) sequences is also addressed.