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Secure key agreement over reciprocal fading channels in the low SNR regime
KTH, School of Electrical Engineering (EES), Communication Theory. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.
KTH, School of Electrical Engineering (EES), Communication Theory. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.ORCID iD: 0000-0002-7926-5081
2013 (English)In: 2013 IEEE  14th Workshop on Signal Processing Advances in Wireless Communications, SPAWC, IEEE , 2013, 674-678 p.Conference paper, Published paper (Refereed)
Abstract [en]

We study the low SNR scaling of the non-coherent secret-key agreement capacity over a reciprocal, block-fading channel. For the restricted class of strategies, where one of the nodes is constrained to transmit pilot-only symbols, we show that the secret-key capacity scales as SNR ·log T if T ≤ 1/SNR, where T denotes the coherence period, and as SNR·log(1/SNR) otherwise. Our upper bound is inspired by the genie-aided argument of Borade and Zheng (IT-Trans 2010). Our lower bound is based on bursty communication, channel training, and secret message transmission.

Place, publisher, year, edition, pages
IEEE , 2013. 674-678 p.
Series
IEEE International Workshop on Signal Processing Advances in Wireless Communications, ISSN 2325-3789
Keyword [en]
Block fading channel, Channel trainings, Key agreement, Low-snr regimes, Lower bounds, Secret messages, Secret-key agreements, Upper Bound, Fading channels, Signal processing, Testbeds, Wireless telecommunication systems, Signal to noise ratio
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-140028DOI: 10.1109/SPAWC.2013.6612135ISI: 000333366400136Scopus ID: 2-s2.0-84885832262ISBN: 978-1-4673-5577-3 (print)OAI: oai:DiVA.org:kth-140028DiVA: diva2:689685
Conference
2013 IEEE 14th Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2013, 16 June 2013 through 19 June 2013, Darmstadt
Note

QC 20140121

Available from: 2014-01-21 Created: 2014-01-16 Last updated: 2014-04-24Bibliographically approved

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Skoglund, Mikael

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
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More styles
Language
  • de-DE
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  • fi-FI
  • nn-NO
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Output format
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