Security-Reliability Tradeoff Analysis of Artificial Noise Aided Two-Way Opportunistic Relay Selection

Ding, Xiaojin; Song, Tiecheng; Zou, Yulong; Chen, Xiaoshu; Hanzo, Lajos

doi:10.1109/tvt.2016.2601112

Cited by 68 publications

(62 citation statements)

References 34 publications

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“…The proposed hybrid switching scheme shows performance gain in terms of secrecy rate. In addition, relay selection is often jointly designed with other traditional techniques such as cooperative beamforming or additive artificial noise (AN) to achieve high spectrum efficiency . In the work of Kim et al, a joint relay selection and cooperative beamforming scheme was developed, where the secrecy rate is improved by the selection gain achieved by only selecting 2 available relays for beamforming and legal signal transmission.…”

Section: Introductionmentioning

confidence: 99%

“…In the work of Kim et al, a joint relay selection and cooperative beamforming scheme was developed, where the secrecy rate is improved by the selection gain achieved by only selecting 2 available relays for beamforming and legal signal transmission. In the work of Ding et al, an AN‐aided opportunistic relay selection scheme was proposed to evaluate the performance of security reliability in wireless two‐way networks with an eavesdropper, which shows better performance comparing with direct transmission and one‐way relaying.…”

Section: Introductionmentioning

confidence: 99%

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Selective cooperation with untrusted relays for physical‐layer security in wireless multipair two‐way relaying networks

Zhao

Lyu

et al. 2018

Trans Emerging Tel Tech

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In this paper, the selective cooperation with untrusted relays is studied for wireless multipair two‐way relay networks. We first investigate the feasibility of secure transmission in the presence of cooperative but untrusted relays and then formulate a general optimization problem of secrecy sum‐rate maximization under the constraints of relay selection. By decomposing the original problem into solvable subproblems, we develop a low‐complexity greedy algorithm for selective cooperation, in which the untrusted relays are selected as cooperators or the potential eavesdroppers according to the overall contributions to the secrecy sum rate. Simulation results reveal that the proposed greedy algorithm for selective cooperation with untrusted relays achieves performance gain both in instantaneous and average secrecy sum rate and that the algorithm can converge quickly with the iterations.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Selective cooperation with untrusted relays for physical‐layer security in wireless multipair two‐way relaying networks

Zhao

Lyu

et al. 2018

Trans Emerging Tel Tech

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“…12 Opportunistic relaying is another method in which only the best relay node, which is selected based on the magnitude of instantaneous channel fading coefficients, transmits during the second phase. 13,14 With proper channel side information (CSI), we can employ resource allocation over time, frequency, and space to allocate more resources to channels that are more reliable and prevent transmitting in poor channels to save energy. Moreover, space-time or space-frequency codes can be used to enhance the transmission reliability.…”

Section: Introductionmentioning

confidence: 99%

New beamforming and distributed space‐time coding with selection relaying over Nakagami‐m fading channels

Gilan

Olfat

2018

Trans Emerging Tel Tech

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In this paper, a decode‐and‐forward (DF) cooperative network under Nakagami‐m fading is considered. A threshold‐based selection relaying scheme is used to choose the relays for cooperation and the selected relays then employ distributed space‐time coding (DSTC) to retransmit their detected symbols to destination. When employing DSTC, due to decoding errors at DF relays, intersymbol interference (ISI) would be inevitable in these networks. A new beamforming (BF) method, named as bisector alignment, is proposed for mitigating ISI between symbols of DSTC scheme caused by erroneous detection of symbols at relay. It is demonstrated that this scheme by using a simple maximal ratio combining is more power efficient compared with other existing methods. A closed‐form expression for end‐to‐end bit error rate (BER) of the system is derived and the asymptotic behavior analysis of the system illustrates that the threshold‐based selection relaying scheme by employing proper thresholds derived in this paper achieves full diversity order (M + 1)m in a network with M relays and Nakagami shape parameter m. Moreover, we can observe an excellent agreement between analytical and simulation results and the proposed BF achieves more than 3‐dB power gain at BER of 10−3. Based on our results, it can be seen that our proposed scheme is robust to imperfect channel estimation and quantizations.

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“…Relay selection for two-hop secure transmissions was initially studied in [3], where a relay and a friendly jammer were selected to maximize the secrecy rate. Then, research into relay selection was extended to other types of relays, such as full-duplex relays [5], two-way relays [6], buffer-aided relays [7], and cognitive relays [8]. Another efficient method to promote security is to employ multiple antennas.…”

Section: Introductionmentioning

confidence: 99%

Secure Connectivity Probability of Multi-hop Clustered Randomize-and-Forward Networks

Wang¹,

Su²,

Wang³

2017

ETRI Journal

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This work investigates secure cluster-aided multihop randomize-and-forward networks. We present a hop-by-hop multi-hop transmission scheme with relay selection, which evaluates for each cluster the relays that can securely receive the message. We propose an analytical model to derive the secure connectivity probability (SCP) of the hop-by-hop transmission scheme. For comparison, we also analyze SCPs of traditional end-to-end transmission schemes with two relay-selection policies. We perform simulations, and our analytical results verify that the proposed hop-byhop scheme is superior to end-to-end schemes, especially with a large number of hops or high eavesdropper channel quality. Numerical results also show that the proposed hop-by-hop scheme achieves near-optimal performance in terms of the SCP.

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Security-Reliability Tradeoff Analysis of Artificial Noise Aided Two-Way Opportunistic Relay Selection

Cited by 68 publications

References 34 publications

Selective cooperation with untrusted relays for physical‐layer security in wireless multipair two‐way relaying networks

Selective cooperation with untrusted relays for physical‐layer security in wireless multipair two‐way relaying networks

New beamforming and distributed space‐time coding with selection relaying over Nakagami‐m fading channels

Secure Connectivity Probability of Multi-hop Clustered Randomize-and-Forward Networks

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