Outage probability of dual-hop amplify-and-forward cognitive relay networks under interference power constraints over Nakagami-m fading channels

Shurman, Mohammad; Al-Mistarihi, Mamoun F.; Alhulayil, Moawiah

doi:10.1109/mipro.2015.7160326

Cited by 4 publications

(2 citation statements)

References 16 publications

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“…In addition, locating the IRS near the source can improve the performance instead of locating it between the two nodes of the bidirectional FD-MTC system. On the other hand, the authors in [55] investigated the same system model using AF relays. In this work, there was no direct link between the source and destination.…”

Section: Introductionmentioning

confidence: 99%

Best Relay Selection Strategy in Cooperative Spectrum Sharing Framework with Mobile-Based End User

et al. 2023

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In this work, a cognitive relay network (CRN) with interference constraint from the primary user (PU) with a mobile end user is studied. The proposed system model employs a half-duplex transmission between a single PU and a single secondary user (SU). In addition, an amplify and forward (AF) relaying technique is employed between the SU source and SU destination. In this context, the mobile end user (SU destination) is assumed to move at high vehicular speeds, whereas other nodes (SU Source, SU relays and PU) are assumed to be stationary. The proposed scheme dynamically determines the best relay for transmission based on the highest signal-to-noise (SNR) ratio by deploying selection combiner at the SU destination, thereby achieving diversity. All channels connected with the stationary nodes are modelled using Rayleigh distribution, whereas all other links connected with the mobile end user are modelled using Nakagami-m fading distribution (m<1). The outage probabilities (OPs) are obtained considering several scenarios and Monte Carlo simulation is used to verify the numerical results. The obtained results show that a variety of factors, including the number of SU relays, the severity of the fading channels, the position of the PU, the fading model, and the mobile end user speed, might influence the CRN’s performance.

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Section: Introductionmentioning

confidence: 99%

Best Relay Selection Strategy in Cooperative Spectrum Sharing Framework with Mobile-Based End User

et al. 2023

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“…The variation of secrecy outage probability for several parameters was observed. On the other hand, the performance of dual-hop AF multiple-relay CRN under the interference from the PU was investigated in [54]. All channels experienced a Nakagamim fading model.…”

Section: Introductionmentioning

confidence: 99%

Performance Analysis of Dual-Hop AF Cognitive Relay Networks with Best Selection and Interference Constraints

2022

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In this paper, a dual-hop underlay cognitive relay network (CRN) with a best-relay selection (BRS) scheme under spectrum-sharing constraints from the primary user (PU) is investigated. The system model in this work consists of one PU, one secondary user (SU) and a few SU relays. Both users exchange the information using a half-duplex mode through amplify-and-forward (AF) SU relays. Moreover, all channels are modelled using the Nakagami-m fading model. In this work, the outage probabilities (OPs) are derived for the proposed system model under several scenarios to investigate the network performance under interference power constraint Ip at the PU receiver. In addition, the impacts of the number of relays and the channel fading severity parameters are investigated as well. Furthermore, the system performance is investigated for several PU locations. The various numerical results are verified using a Monte Carlo simulation. Overall, the obtained results show that several factors such as the number of relays, channel fading severity parameters and PU location have a major impact on the outage performance of the SU. The simulation and analytical results are perfectly matched, confirming the accuracy of the analytical derivations.

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Secrecy outage probability of dual-hop DF cognitive relay networks under interference constraints

Yang

Ding

Yang

2016

2016 22nd Asia-Pacific Conference on Communications (APCC)

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Outage probability of dual-hop amplify-and-forward cognitive relay networks under interference power constraints over Nakagami-m fading channels

Cited by 4 publications

References 16 publications

Best Relay Selection Strategy in Cooperative Spectrum Sharing Framework with Mobile-Based End User

Best Relay Selection Strategy in Cooperative Spectrum Sharing Framework with Mobile-Based End User

Performance Analysis of Dual-Hop AF Cognitive Relay Networks with Best Selection and Interference Constraints

Secrecy outage probability of dual-hop DF cognitive relay networks under interference constraints

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