Decode and Zero-Forcing Forward Relaying with Relay Selection in Cognitive Radio Systems

Handle URI:
http://hdl.handle.net/10754/565870
Title:
Decode and Zero-Forcing Forward Relaying with Relay Selection in Cognitive Radio Systems
Authors:
Park, Kihong ( 0000-0002-6867-4277 ) ; Alouini, Mohamed-Slim ( 0000-0003-4827-1793 )
Abstract:
In this paper, we investigate a cognitive radio (CR) relay network with multiple relay nodes that help forwarding the signal of CR users. Best relay selection is considered to take advantage of its low complexity of implementation. When the primary user (PU) is located close to the relay nodes, the performance of the secondary network is severely degraded due to the interference power constraint during the transmission in the second hop. We propose a decode and zero-forcing forward scheme to suppress the interference power at the relay nodes and analyze the statistics of the end-to-end signal-to-noise ratio when the relay nodes are located arbitrarily and experience therefore non-identical Rayleigh fading channels. Numerical results validate our theoretical results and show that our proposed scheme improves the performance of the CR network when the PU is close to the relay nodes. © 2014 IEEE.
KAUST Department:
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division; Electrical Engineering Program; Communication Theory Lab
Publisher:
Institute of Electrical and Electronics Engineers (IEEE)
Journal:
2014 IEEE 79th Vehicular Technology Conference (VTC Spring)
Conference/Event name:
2014 79th IEEE Vehicular Technology Conference, VTC 2014-Spring
Issue Date:
May-2014
DOI:
10.1109/VTCSpring.2014.7022873
Type:
Conference Paper
Appears in Collections:
Conference Papers; Electrical Engineering Program; Communication Theory Lab; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorPark, Kihongen
dc.contributor.authorAlouini, Mohamed-Slimen
dc.date.accessioned2015-08-11T13:44:15Zen
dc.date.available2015-08-11T13:44:15Zen
dc.date.issued2014-05en
dc.identifier.doi10.1109/VTCSpring.2014.7022873en
dc.identifier.urihttp://hdl.handle.net/10754/565870en
dc.description.abstractIn this paper, we investigate a cognitive radio (CR) relay network with multiple relay nodes that help forwarding the signal of CR users. Best relay selection is considered to take advantage of its low complexity of implementation. When the primary user (PU) is located close to the relay nodes, the performance of the secondary network is severely degraded due to the interference power constraint during the transmission in the second hop. We propose a decode and zero-forcing forward scheme to suppress the interference power at the relay nodes and analyze the statistics of the end-to-end signal-to-noise ratio when the relay nodes are located arbitrarily and experience therefore non-identical Rayleigh fading channels. Numerical results validate our theoretical results and show that our proposed scheme improves the performance of the CR network when the PU is close to the relay nodes. © 2014 IEEE.en
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)en
dc.titleDecode and Zero-Forcing Forward Relaying with Relay Selection in Cognitive Radio Systemsen
dc.typeConference Paperen
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Divisionen
dc.contributor.departmentElectrical Engineering Programen
dc.contributor.departmentCommunication Theory Laben
dc.identifier.journal2014 IEEE 79th Vehicular Technology Conference (VTC Spring)en
dc.conference.date18 May 2014 through 21 May 2014en
dc.conference.name2014 79th IEEE Vehicular Technology Conference, VTC 2014-Springen
kaust.authorPark, Kihongen
kaust.authorAlouini, Mohamed-Slimen
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