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On the asymptotic sum-rate of the relay-assisted amplify-and-forward cognitive MIMO channel
KTH, Skolan för elektro- och systemteknik (EES), Kommunikationsteori. KTH, Skolan för elektro- och systemteknik (EES), Centra, ACCESS Linnaeus Centre. (Kommunikationsteori, Communication Theory)
KTH, Skolan för elektro- och systemteknik (EES), Kommunikationsteori. KTH, Skolan för elektro- och systemteknik (EES), Centra, ACCESS Linnaeus Centre. (Kommunikationsteori, Communication Theory)
KTH, Skolan för elektro- och systemteknik (EES), Kommunikationsteori. KTH, Skolan för elektro- och systemteknik (EES), Centra, ACCESS Linnaeus Centre. (Kommunikationsteori, Communication Theory)ORCID-id: 0000-0001-7182-9543
2012 (engelsk)Inngår i: Personal Indoor and Mobile Radio Communications (PIMRC), 2012 IEEE 23rd International Symposium on, IEEE , 2012, s. 709-714Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]

This paper studies the asymptotic sum-rate of the primary network within the relay-assisted multi-antenna cognitive radio system performing amplify-and-forward relaying. The achievable sum-rates are derived in the large-system limit by means of the replica method. A closed-form expression for the sum-rate of the primary network is obtained for large antenna arrays as a function of parameters obtained by solving a set of fixed-point equations. Numerical simulations confirm the validity of the results even for systems with only a few antennas at each terminal.

sted, utgiver, år, opplag, sider
IEEE , 2012. s. 709-714
Serie
IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC, ISSN 2166-9570
Emneord [en]
Amplify-and-forward, Amplify-and-forward relaying, Closed-form expression, Fixed point equation, MIMO channel, Multi-antenna, Replica method, Sum-rate
HSV kategori
Identifikatorer
URN: urn:nbn:se:kth:diva-103747DOI: 10.1109/PIMRC.2012.6362876ISI: 000312809400121Scopus ID: 2-s2.0-84871952681ISBN: 978-146732569-1 (tryckt)OAI: oai:DiVA.org:kth-103747DiVA, id: diva2:561607
Konferanse
2012 IEEE 23rd International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2012; Sydney, NSW;9 September 2012 through 12 September 2012
Forskningsfinansiär
Swedish Research CouncilICT - The Next Generation
Merknad

QC 20121219

Tilgjengelig fra: 2012-10-19 Laget: 2012-10-19 Sist oppdatert: 2013-04-19bibliografisk kontrollert

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