Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Cooperation for Secure Broadcasting in Cognitive Radio Networks
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.
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: 0000-0001-9456-8702
Show others and affiliations
2012 (English)In: Communications (ICC), 2012 IEEE International Conference on, IEEE , 2012, 5613-5618 p.Conference paper, Published paper (Refereed)
Abstract [en]

This paper explores the trade-off between cooperation and secrecy in cognitive radio networks. We consider a scenario consisting of a primary and a secondary system. In the simplest case, each system is represented by a pair of transmitter and receiver. We assume a secrecy constraint on the transmission in the sense that the message of the primary transmitter has to be concealed from the secondary receiver. Both situations where the secondary transmitter is aware and unaware of the primary message are investigated and compared. In the first case, the secondary transmitter helps by allocating power for jamming, which increases the secrecy of the first message. In the latter case, it can also act as a relay for the primary message, thus improving the reliability of the primary transmission. Furthermore, we extend our results to the scenario where the secondary system comprises multiple receivers. For each case we present achievable rate regions. We then provide numerical illustrations for these rate regions. Our main result is that, in spite of the secrecy constraint, cooperation is beneficial in terms of the achievable rates. In particular, the secondary system can achieve a significant rate without decreasing the primary rate below the benchmark rate achievable without the help of the secondary transmitter. Finally, we investigate the influence of the distances between users on the system's performance.

Place, publisher, year, edition, pages
IEEE , 2012. 5613-5618 p.
Series
IEEE International Conference on Communications, ISSN 1550-3607
Keyword [en]
Channels, Secrecy
National Category
Telecommunications
Identifiers
URN: urn:nbn:se:kth:diva-91515DOI: 10.1109/ICC.2012.6364834ISI: 000312855705173Scopus ID: 2-s2.0-84871951600ISBN: 978-145772052-9 (print)OAI: oai:DiVA.org:kth-91515DiVA: diva2:510538
Conference
2012 IEEE International Conference on Communications, ICC 2012; Ottawa, ON; 10 June 2012 through 15 June 2012
Funder
EU, FP7, Seventh Framework Programme, 248303ICT - The Next Generation
Note

QC 20121219

Available from: 2012-03-16 Created: 2012-03-16 Last updated: 2013-04-15Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full textScopus

Authority records BETA

Li, NanThobaben, RagnarRasmussen, Lars K.

Search in DiVA

By author/editor
Gabry, FrédéricSchrammar, NicolasGirnyk, MaksymLi, NanThobaben, RagnarRasmussen, Lars K.
By organisation
Communication TheoryACCESS Linnaeus Centre
Telecommunications

Search outside of DiVA

GoogleGoogle Scholar

doi
isbn
urn-nbn

Altmetric score

doi
isbn
urn-nbn
Total: 186 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf