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EnglishThis paper deals with soft-information based information reconciliation and data sifting for Quantum Key Distribution (QKD).We propose a novel composite channel model for QKD, which includes both a hard output quantum channel and a soft output classic channel. The metrics derived from the two channels are jointly processed at the receiver, exploiting capacity achieving soft-metric based iteratively decoded block codes. The performance of the proposed mixed-softmetric algorithms are studied via simulations as a function of the system parameters. The core ideas of the paper are: a) employing FEC coding as opposed to two-way communication for information reconciliation, b) exploiting all the available information for data processing at the receiver including information available from the quantum channel, since optimized use of this information can lead to significant performance improvement.
Soft-metric-based information reconciliation techniques for QKD / Mondin, Marina; Daneshgaran, Fred; Delgado, Maria; Mesiti, Fabio. - STAMPA. - 7815(2010), pp. 1-8. ((Intervento presentato al convegno SPIE Optics + Photonics 2010 tenutosi a San Diego, USA nel Aug 1, 2010 to Aug 5, 2010 [10.1117/12.858357].
| Titolo: | Soft-metric-based information reconciliation techniques for QKD | |
| Autori: | ||
| Data di pubblicazione: | 2010 | |
| Abstract: | This paper deals with soft-information based information reconciliation and data sifting for Quan...tum Key Distribution (QKD).We propose a novel composite channel model for QKD, which includes both a hard output quantum channel and a soft output classic channel. The metrics derived from the two channels are jointly processed at the receiver, exploiting capacity achieving soft-metric based iteratively decoded block codes. The performance of the proposed mixed-softmetric algorithms are studied via simulations as a function of the system parameters. The core ideas of the paper are: a) employing FEC coding as opposed to two-way communication for information reconciliation, b) exploiting all the available information for data processing at the receiver including information available from the quantum channel, since optimized use of this information can lead to significant performance improvement. | |
| ISBN: | 9780819483119 | |
| Appare nelle tipologie: | 4.1 Contributo in Atti di convegno |
File in questo prodotto:
| File | Descrizione | Tipologia | Licenza | |
|---|---|---|---|---|
| soft-metric based inbformation reconciliation SPIE 2010.pdf | 2. Post-print / Author's Accepted Manuscript | Non Pubblico - Accesso privato/ristretto | Administrator Richiedi una copia |
http://hdl.handle.net/11583/2375122
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