Static hybrid multihop relaying and two hops hybrid relaying using DSTC

Touati, Sami; Boujemâa, Hatem; Abed, Nazha

doi:10.1007/s12243-014-0438-3

Cited by 9 publications

(6 citation statements)

References 15 publications

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“…The achievable secrecy rates for the first hop ψ 1 can be obtained from (7), and for the second hop ψ 2 can be obtained from (8) and 9as follows:…”

Section: Energy Harvesting-based Power Splitting and Transmission Opementioning

confidence: 99%

“…Some performance metrics as outage probability, average sum-rate, and average symbol error rate for the semi-blind (partial channel state information) have been analyzed for the conditions of Rayleigh fading channels [5], the Nakagami-m fading environment [6], and the generalized-K fading channel [7]. A hybrid AF-DF protocol has been considered for multihop relaying networks [8]. Several works have addressed the application of energy harvesting techniques in energy-constrained relay nodes of cooperative systems.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Exact Outage Analysis of Cognitive Energy Harvesting Relaying Networks under Physical Layer Security

Nguyen¹,

Nguyen²,

Van³

et al. 2019

EAI Endorsed Transactions on Industrial Networks and Intelligen

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In this paper, we study the secure communication of cognitive energy harvesting relay networks when there exist multiple eavesdroppers who can overhear the message of the second hop, and multiple primary users are present. The data transmission from the secondary source to the secondary destination is assisted by the best decode-and-forward relay, which is selected by means of three relay selection schemes. We study the system security performance by deriving the exact analytical secrecy outage probability. These analytical expressions are then verified by comparison to the results of Monte Carlo simulations. Herein we evaluate and discuss the outage performance of the three schemes under variations in important system parameters: the number and locations of relay nodes, primary user nodes, and eavesdroppers; the transmit power threshold; the energy harvesting efficiency coefficient; the power splitting ratio; and the target secure rate.

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“…The achievable secrecy rates for the first hop ψ 1 can be obtained from (7), and for the second hop ψ 2 can be obtained from (8) and 9as follows:…”

Section: Energy Harvesting-based Power Splitting and Transmission Opementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Exact Outage Analysis of Cognitive Energy Harvesting Relaying Networks under Physical Layer Security

Nguyen¹,

Nguyen²,

Van³

et al. 2019

EAI Endorsed Transactions on Industrial Networks and Intelligen

View full text Add to dashboard Cite

show abstract

“…On the other hand, a threshold SNR Γ th will be defined to ensure that the rate is above a specific rate with function Γ th . According to (5) with the help of (6), the total average SNR can be written as:…”

Section: Energy Consumption (Ec) For Eh Relayingmentioning

confidence: 99%

“…The DF protocol also needs a sophisticated media access control layer, while this is not necessary for the AF protocol [4]. On the other hand, a hybrid relaying protocol can be used in certain applications [5,6]. However, there are several limitations of the AF relays, such as non-linear distortion and noise added by the information receiver.…”

Section: Introductionmentioning

confidence: 99%

Wireless Energy Harvesting with Cooperative Relaying under the Best Relay Selection Scheme

2019

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One of the most notable challenges in wireless communications is energy scarcity, which has attracted considerable attention in Fifth Generation (5G) wireless network research. This paper investigates the performance of energy harvesting (EH) relays under the best relay selection (BRS) scheme. The results show degradation of spectral efficiency (SE) due to EH relaying compared with conventional cooperative relaying (CR). Conversely, EH relaying provides a positive gain compared with conventional CR, increasing the lifetime of the network and decreasing energy consumption (EC) and operational cost. Moreover, the EH relaying network has better energy efficiency (EE) compared with conventional relaying networks. Results show that when EH relaying is applied, EE is improved through an increased number of relays. Finally, the SE-EE metric is presented for both conventional and EH relays. Results show that the performance of the proposed technique was able to achieve a maximum SE of 1.4 bits/s/Hz and maximum EE at 0.6 bits/s/Hz, and for the case of conventional relays, a maximum SE of 2 bits/s/Hz and EE at 1.1 bits/s/Hz. This result implies that the proposed EH scheme provides an optimum solution for energy-constrained wireless CR systems.

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“…The analysis of a dual-hop two-way semi-blind AF relay network (partial channel state information (CSI)) was investigated in terms of average sum-rate, outage probability, and average symbol error rate over Rayleigh fading channels [6], Nakagami-m fading channels [7], and generalized-k fading channels [8]. The authors in [9] studied the hybrid AF-DF protocol, in which some relays amplify the received signal and others decode and forward the signal, for mutltihop relaying networks. The authors in [10] investigated the performance of dual-hop DF relaying networks under the joint impact of hardware impairment and co-channel interference.…”

Section: Introductionmentioning

confidence: 99%

Outage Performance of a Two-branch Cooperative Energy-constrained Relaying Network with Selection Combining at Destination

Nguyen¹,

Kong²

2018

EAI Endorsed Transactions on Industrial Networks and Intelligen

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In this paper, we investigate two-branch cooperative DF relaying networks with selection combining at the destination. Two intermediate relay-clusters (a conventional relay cluster and an energy-constrained relay cluster) are utilized to aid the communication between the source and the destination. We study two cases: direct link (DR) and no direct link (NDR) between the source and the destination. In each case, we consider two relay selection schemes: best sourceâĂŞrelay channel gain (BSR) and random relay selection (RAN). Thus, we have 4 protocols: DR-BSR, DR-RAN, NDR-BSR, and NDR-RAN. For the performance evaluation, we derive a closed-form expression for the outage probability of each of the four protocols. Our analysis is substantiated via a Monte Carlo simulation. As expected, the results show that the DR case outperforms the NDR case, and the BSR scheme outperforms the RAN scheme. The outage performances of the protocols are evaluated based on the system parameters, including the transmit power, the number of relays in each cluster, the energy harvesting efficiency, the position of the two clusters, and the target rate. The outage performance of the system is improved when the transmit power increases, the energy harvesting efficiency increases, the distance between the two clusters and the source and destination decreases, or the target rate decreases. We found good matches between the theoretical and Monte Carlo simulation results, verifying our mathematical analysis.

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Static hybrid multihop relaying and two hops hybrid relaying using DSTC

Cited by 9 publications

References 15 publications

Exact Outage Analysis of Cognitive Energy Harvesting Relaying Networks under Physical Layer Security

Exact Outage Analysis of Cognitive Energy Harvesting Relaying Networks under Physical Layer Security

Wireless Energy Harvesting with Cooperative Relaying under the Best Relay Selection Scheme

Outage Performance of a Two-branch Cooperative Energy-constrained Relaying Network with Selection Combining at Destination

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