On the asymptotic sum-rate of the relay-assisted amplify-and-forward cognitive MIMO channel

Maksym A. Girnyk, Mikko Vehkaperä, Lars K. Rasmussen

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Abstract

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.

Original languageEnglish
Title of host publication2012 IEEE 23rd International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2012
PublisherIEEE Institute of Electrical and Electronic Engineers
Pages709-714
ISBN (Electronic)978-1-4673-2568-4, 978-1-4673-2569-1
ISBN (Print)978-1-4673-2566-0
DOIs
Publication statusPublished - 1 Dec 2012
MoE publication typeA4 Article in a conference publication
Event23rd IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2012 - Sydney, Australia
Duration: 9 Sep 201212 Sep 2012
Conference number: 23

Publication series

SeriesIEEE International Symposium on Personal, Indoor, and Mobile Radio Communications Workshops
ISSN2166-9570

Conference

Conference23rd IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2012
Abbreviated titlePIMRC
CountryAustralia
CitySydney
Period9/09/1212/09/12

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  • Cite this

    Girnyk, M. A., Vehkaperä, M., & Rasmussen, L. K. (2012). On the asymptotic sum-rate of the relay-assisted amplify-and-forward cognitive MIMO channel. In 2012 IEEE 23rd International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2012 (pp. 709-714). [6362876] IEEE Institute of Electrical and Electronic Engineers. IEEE International Symposium on Personal, Indoor, and Mobile Radio Communications Workshops https://doi.org/10.1109/PIMRC.2012.6362876