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On the Performance of Cognitive Radio Networks with DF Relay Assistance Under Primary Outage Constraint Using SC and MRC
Blekinge Institute of Technology, School of Computing.
Blekinge Institute of Technology, School of Computing.
Blekinge Institute of Technology, School of Computing.
2013 (English)Conference paper (Refereed) Published
Abstract [en]

In this paper, we analyze the performance of a cognitive radio network (CRN) that is assisted by a single relay. In particular, the secondary user (SU) transmitter (SU-Tx) and the secondary relay (SR) utilize the licensed frequency band of the primary user (PU). To protect the PU from harmful interference, the SU-Tx and SR must regulate their transmit power to satisfy the outage probability constraint of the PU. System performance in terms of outage probability is analyzed for selection combining (SC) and maximal ratio combining (MRC). Specifically, a power allocation policy and analytical expressions for the outage probability with SC and MRC are derived. Our results show that the upper bound of the outage probability corresponding to MRC is equal to the exact expression for the outage probability for SC.

Place, publisher, year, edition, pages
Ho Chi Minh City, Vietnam: IEEE , 2013.
Keyword [en]
Outage Probability, Cognitive Radio Network, Decode-and-Forward Relay, Primary Outage Constraint, Selection Combining, Maximal Ratio Combining
National Category
Telecommunications
Identifiers
URN: urn:nbn:se:bth-6657ISI: 000331178400003Local ID: oai:bth.se:forskinfoEC016C2D08189412C1257C0B002A004CISBN: 978-1-4799-1086-1OAI: oai:DiVA.org:bth-6657DiVA: diva2:834181
Conference
IEEE Internationl Conference on Advanced Technologies for Communications
Available from: 2014-07-17 Created: 2013-10-21 Last updated: 2015-06-30Bibliographically approved

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