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논문 기본 정보

자료유형
학술대회자료
저자정보
Jemin Lee (University of Texas at Austin) Gosan Noh (연세대학교) Hano Wang (연세대학교) Sungmook Lim (연세대학교) Eunho Choi (University of Texas at Austin) Daesik Hong (연세대학교)
저널정보
대한전자공학회 ITC-CSCC :International Technical Conference on Circuits Systems, Computers and Communications ITC-CSCC : 2009
발행연도
2009.7
수록면
1,605 - 1,608 (4page)

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This paper evaluates the outage probability of cognitive relay networks while adhering to the interference constraint on the primary user, the limited amount of interference which the primary user can tolerate. In the relaying transmission, the relay selection critically affects the performance of relaying transmission and the conventional relay selection criteria are not suitable in cognitive relay networks because of the interference constraint. Hence, the relay selection criterion for cognitive relay networks is proposed and using it, we derive the outage probability. Based on the analysis, we also define the conditions that the relaying transmission achieves better performance in outage probability than the direct transmission. Finally, it is verified that the distance ratio of interfering link to relaying link, the interference threshold as well as the target data rate affect the superiority to relaying transmission compared to the direct transmission in cognitive relay networks.

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Abstract
Ⅰ. INTRODUCTION
Ⅱ. RELAYING TRANSMISSION IN COGNITIVE RADIO NETWORKS
Ⅲ. OUTAGE ANALYSIS OF COGNITIVE RELAY NETWORKS WITH SIMPLE RELAY SELECTION
Ⅳ. NUMERICAL RESULTS
Ⅴ. CONCLUSIONS
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UCI(KEPA) : I410-ECN-0101-2012-569-004024016