Consiglio Nazionale delle Ricerche

Tipo di prodottoArticolo in rivista
TitoloPerformance and stability analysis of echo cancellers based on training sequences
Anno di pubblicazione2014
Autore/iZabini F.; Mazzotti M.; Dardari D.; Chiurco G.; Andrisano O.
Affiliazioni autoriIEIIT-CNR, University of Bologna, Bologna, 40136, Italy; WiLAB, IEIIT-CNR, University of Bologna, Cesena, 47521, Italy; Teko Telecom S.r.l., Bologna, 40024, Italy
Autori CNR e affiliazioni
  • inglese
AbstractWe analyze a two-stage echo cancellation technique for on-channel repeaters (OCRs) based on the reconstruction of the coupling channel impulse response via digital filtering. The estimation of the coupling channel between the transmitting and the receiving antennas is achieved through the injection in the repeated signal of locally generated low-power pseudo-noise sequences or trains of short pulses. The analytical model developed in this paper permits the investigation of some important performance figures, such as the mean rejection ratio, the echo suppression and the echo suppression at nominal position. In addition, a new analytical framework dealing with canceller stability issues, arising due to the non perfect echo cancellation, is derived. Specifically, an upper bound on the probability of instability of the canceller is provided. As shown in the numerical results, this framework permits the identification of the main OCR design guidelines. Finally, we will validate our analytical models by showing their accordance with the experimental measurements realized with the OCR prototypes we developed.
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Altro abstract-
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Pagine da437
Pagine a451
Pagine totali15
RivistaIEEE transactions on broadcasting
Attiva dal 1963
Editore: Institute of Electrical and Electronics Engineers] - [New York,
Paese di pubblicazione: Stati Uniti d'America
Lingua: inglese
ISSN: 0018-9316
Titolo chiave: IEEE transactions on broadcasting
Titolo proprio: IEEE transactions on broadcasting.
Titolo abbreviato: IEEE trans. broadcast.
Titoli alternativi:
  • Transactions on broadcasting
  • Broadcasting
Numero volume della rivista60
Fascicolo della rivista3
Verificato da refereeSì: Internazionale
Stato della pubblicazionePublished version
Indicizzazione (in banche dati controllate)
  • Scopus (Codice:2-s2.0-84929061160)
Parole chiaveEcho canceller, OFDM, relay, Stability
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Strutture CNR
  • IEIIT — IEIIT - Sede secondaria di Bologna
Moduli CNR
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