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Goljahani, Anahita (2009) OFDM/OQAM based terrestrial digital broadcasting. [Tesi di dottorato]

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Abstract (inglese)

In this thesis an OFDM/ OQAM based system for the next generation terrestrial digital broadcasting standard is proposed and its performance, in terms of spectral efficiency, is compared to OFDM-CD3 performance. As far as coding is concerned, LDPC and BCH codes have been utilized, synchronization and channel estimation have been performed by a superimposed technique and a one tap MMSE equalization
scheme has been adopted. As shown by simulation results,
an improvement of more than 13% is achieved by OFDM/OQAM system, confirming, in a practical system, the expectation of a significant spectral efficiency improvement.

Abstract (italiano)

In questa tesi viene proposto un sistema di trasmissione basato su modulazione OFDM/OQAM per il broadcasting video digitale terrestre di nuova generazione. Le prestazioni di tale sistema, in termini di efficienza spettrale, sono confrontate con le prestazioni di un sistema OFDM-CD3. Per quanto concerne la codifica, vengono impiegati codici LDPC e BCH concatenati, la sincronizzazione e la stima di canale vengono ottenuti attraverso una tecnica a sequenza sovrapposta e l'equalizzazione MMSE è a un tappo. Come dimostrato da risultati simulativi, il sistema OFDM/OQAM permettere di ottenere prestazioni maggiori del più del 13%, a conferma
dell'aspettativa di un significativo miglioramento dell'efficienza spettrale in un sistema reale.

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Tipo di EPrint:Tesi di dottorato
Relatore:Vangelista, Lorenzo
Dottorato (corsi e scuole):Ciclo 21 > Scuole per il 21simo ciclo > INGEGNERIA DELL'INFORMAZIONE > INGEGNERIA ELETTRONICA E DELLE TELECOMUNICAZIONI
Data di deposito della tesi:01 Febbraio 2009
Anno di Pubblicazione:2009
Parole chiave (italiano / inglese):OFDM/OQAM superimposed sequence DVB-T2 spectral efficiency
Settori scientifico-disciplinari MIUR:Area 09 - Ingegneria industriale e dell'informazione > ING-INF/03 Telecomunicazioni
Struttura di riferimento:Dipartimenti > Dipartimento di Ingegneria dell'Informazione
Codice ID:1898
Depositato il:01 Feb 2009
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Bibliografia

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