2015 38th International Convention on Information and Communication Technology, Electronics and Microelectronics (MIPRO) 2015
DOI: 10.1109/mipro.2015.7160327
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Outage probability of amplify-and-forward underlay cognitive relay networks with selection diversity over Nakagami-m fading channels

Abstract: In this paper, the outage performance is investigated for cognitive dual-hop relay networks with amplify-and-forward (A F) relay and selection combining (SC) receiver at the destination under spectrum sharing constraints on primary user (PU) over independent and identically distributed (i.i.d.)Nakagami-m fading channels. We derive an exact closed-form expression for the outage probability (OP) of the considered system under the peak interference power Ip at the primary user, and the impact of the PU location o… Show more

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Cited by 3 publications
(6 citation statements)
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“…In the first phase, SS broadcasts the signal to SRs under the transmit power which guarantees that the interference on the PU receiver does not exceed the maximum tolerable interference power Q . As a result, the transmit power of SS is given by P s = Q /| h 1 | 2 [10–12, 17, 21], where h 1 represents the channel coefficient for the SS−PU link. Note that the single power constraint of the interference on the primary network is considered in our scenario as described in [10–12, 17, 21].…”
Section: System Modelmentioning
confidence: 99%
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“…In the first phase, SS broadcasts the signal to SRs under the transmit power which guarantees that the interference on the PU receiver does not exceed the maximum tolerable interference power Q . As a result, the transmit power of SS is given by P s = Q /| h 1 | 2 [10–12, 17, 21], where h 1 represents the channel coefficient for the SS−PU link. Note that the single power constraint of the interference on the primary network is considered in our scenario as described in [10–12, 17, 21].…”
Section: System Modelmentioning
confidence: 99%
“…In the second phase, the selected relay k amplifies the received signal with a variant gain and forwards it to the destination. The transmit power of SR i [10–12, 17, 21] is P i = Q /| h 2, i | 2 , where h 2, i denotes the channel coefficient for the SR i −PU link. Let f i and g i be the channel coefficients of the SS−SR i and the SR i −SD links, respectively.…”
Section: System Modelmentioning
confidence: 99%
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“…In addition, the communication between the source and destination of the SU network was not available through a direct link due to sever shadowing. On the other hand, an enhanced CRN model with a direct link was considered in [55]. An SC scheme was deployed at the destination.…”
Section: Introductionmentioning
confidence: 99%