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Secure key agreement over reciprocal fading channels in the low SNR regime
KTH, Skolan för elektro- och systemteknik (EES), Kommunikationsteori. KTH, Skolan för elektro- och systemteknik (EES), Centra, ACCESS Linnaeus Centre.
KTH, Skolan för elektro- och systemteknik (EES), Kommunikationsteori. KTH, Skolan för elektro- och systemteknik (EES), Centra, ACCESS Linnaeus Centre.ORCID-id: 0000-0002-7926-5081
2013 (engelsk)Inngår i: 2013 IEEE  14th Workshop on Signal Processing Advances in Wireless Communications, SPAWC, IEEE , 2013, s. 674-678Konferansepaper, Publicerat paper (Fagfellevurdert)
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.

sted, utgiver, år, opplag, sider
IEEE , 2013. s. 674-678
Serie
IEEE International Workshop on Signal Processing Advances in Wireless Communications, ISSN 2325-3789
Emneord [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
HSV kategori
Identifikatorer
URN: urn:nbn:se:kth:diva-140028DOI: 10.1109/SPAWC.2013.6612135ISI: 000333366400136Scopus ID: 2-s2.0-84885832262ISBN: 978-1-4673-5577-3 (tryckt)OAI: oai:DiVA.org:kth-140028DiVA, id: diva2:689685
Konferanse
2013 IEEE 14th Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2013, 16 June 2013 through 19 June 2013, Darmstadt
Merknad

QC 20140121

Tilgjengelig fra: 2014-01-21 Laget: 2014-01-16 Sist oppdatert: 2014-04-24bibliografisk kontrollert

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