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Key Agreement over Multiple Access Channel Using Feedback Channel
2011 (English)Conference paper, Published paper (Refereed)
Abstract [en]

In this paper, the effect of using an insecure and noiseless feedback channel in increasing secret key rates is investigated. There is a generalized discrete memoryless multiple access channel (GDMMAC) between two transmitters and a receiver where, in addition to the receiver, both of the transmitters receive noisy channel outputs. Furthermore, an insecure and noiseless feedback channel exists from the receiver to the transmitters. Each of the transmitters intends to share a secret key with the receiver while keeping it concealed from the other transmitter. For this setup, an inner bound of the secret key capacity region is derived. For some special cases, the secret key capacity region is obtained, and the effect of the feedback channel usage is discussed through a binary-erasure example as well as in the Gaussian case.

Place, publisher, year, edition, pages
2011. 1936-1940 p.
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-96683ISI: 000297465102050ISBN: 978-1-4577-0595-3 (print)OAI: oai:DiVA.org:kth-96683DiVA: diva2:532019
Conference
International Symposium of Information Theory
Note
QC 20120625Available from: 2012-06-08 Created: 2012-06-08 Last updated: 2012-06-25Bibliographically approved

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Salimi, Somayeh
Electrical Engineering, Electronic Engineering, Information Engineering

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CiteExportLink to record
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