Capacity Scaling and Diversity Order for Secure Cooperative Relaying With Untrustworthy Relays

Kim, Jung-Bin; Lim, Jaesung; Cioffi, J.M.

doi:10.1109/twc.2015.2413784

Cited by 47 publications

(59 citation statements)

References 36 publications

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“…In the presence of an external ER, the work in Chen et al 14 examined secure communication between the source and the destination via an EH relay with multiple antennas while the authors in Xing et al 15 studied the secrecy performance of source-destination communication via multiple EH relays. [17][18][19][20][21][22][23] In Huang et al, 17 the authors investigated the secrecy performance of the communication via a multiple antenna untrusted relay in terms of secrecy outage probability. In cases without ERs, the transmission from the source to the destination is still compromised when one may wish to keep the source-destination communication confidential from the relay despite the help of the relay to forward the information.…”

Section: Introductionmentioning

confidence: 99%

“…[17][18][19][20][21][22][23] In Huang et al, 17 the authors investigated the secrecy performance of the communication via a multiple antenna untrusted relay in terms of secrecy outage probability. Also, the works on untrusted relay in previous studies [17][18][19][20][21][22] assume that the relay has the internal supplying power and does not need to harvest energy from the source signal. With the same line of Sun et al, Ju et al, and Wang et al, 20-22 the authors in Kalamkar et al 23 considered the problem of secure communication via an EH untrusted relay, where the relay scavenged energy from both the source signal and destination jamming signal.…”

Section: Introductionmentioning

confidence: 99%

“…In this scenario, the relay also acts as ER. [17][18][19][20][21][22][23] In Huang et al, 17 the authors investigated the secrecy performance of the communication via a multiple antenna untrusted relay in terms of secrecy outage probability. In Zhang et al, 18 the authors proposed the use of friendly jammers to secure the communication via an untrusted relay.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Secure wireless powered relaying networks: Energy harvesting policies and performance analysis

2017

Int J Communication

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In this paper, we investigate the problem of secure communication for a scenario, which consists of one pair of source-destination nodes and one untrusted relay. The source communicates with the destination via the help of energy harvesting-aware untrusted relay, which acts as the helper to forward the source information to the destination; however, the relay also acts as the unintended user to eavesdrop the source information. To keep the source information confidential from untrusted relay, the destination-assisted jamming technique is deployed. We evaluate the impact of energy harvesting protocols on such a secure communication scenario through the proposed energy transfer protocols, namely, source-based energy harvesting protocol and maximum energy harvesting protocol. To evaluate the secrecy performance of these proposed schemes, we derive analytical expressions for two important performance metrics including intercept probability and strictly positive secrecy capacity. The numerical analysis reveals the different trade-off between secure performance and relevant system parameters (i.e., power splitting ratio, time switching ratio, energy conversion efficiency, transmit signal-to-noise ratio, and relay location). Simulation results are also provided to demonstrate the accuracy of the developed analytical expression. KEYWORDS energy harvesting, intercept probability, physical layer security, power splitting, probability of strictly positive secrecy capacity, time switching Int J Commun Syst. 2017;30:e3369.wileyonlinelibrary.com/journal/dac

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Secure wireless powered relaying networks: Energy harvesting policies and performance analysis

2017

Int J Communication

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“…In order to obtain an outage probability, however, it is necessary to determine detailed system parameters, followed by complicated high-precision calculations. On the other hand, a diversity order can be used to roughly but quickly compare multiple diversity techniques for a wide range of system parameters and operating environments [1][2][3][4].…”

Section: Introductionmentioning

confidence: 99%

On the Definition of Diversity Order Based on Renyi Entropy for Frequency Selective Fading Channels

Chae

2017

Entropy

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Abstract:Outage probabilities are important measures of the performance of wireless communication systems, but to obtain outage probabilities it is necessary to first determine detailed system parameters, followed by complicated calculations. When there are multiple candidates of diversity techniques applicable for a system, the diversity order can be used to roughly but quickly compare the techniques for a wide range of operating environments. For a system transmitting over frequency selective fading channels, the diversity order can be defined as the number of multi-paths if multi-paths have all equal energy. However, diversity order may not be adequately defined when the energy values are different. In order to obtain a rough value of diversity order, one may use the number of multi-paths or the reciprocal value of the multi-path energy variance. Such definitions are not very useful for evaluating the performance of diversity techniques since the former is meaningful only when the target outage probability is extremely small, while the latter is reasonable when the target outage probability is very large. In this paper, we propose a new definition of diversity order for frequency selective fading channels. The proposed scheme is based on Renyi entropy, which is widely used in biology and many other fields. We provide various simulation results to show that the diversity order using the proposed definition is tightly correlated with the corresponding outage probability, and thus the proposed scheme can be used for quickly selecting the best diversity technique among multiple candidates.

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“…Considering the practical working condition, the design of secure transmission scheme under channel state information (CSI) uncertainty has already been studied by [10][11][12] with eavesdropper. However, from a robust perspective, relay can also be viewed as a potential eavesdropper [13][14][15][16][17][18][19][20][21][22]. For example, the relay might belong to a heterogeneous network without the same security clearance as the source and the destination nodes.…”

Section: Introductionmentioning

confidence: 99%

Cooperative Secure Transmission in the Presence of Untrusted Relay

Chen

Yang

et al. 2016

International Journal of Distributed Sensor Networks

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Considering a nonregenerative untrusted relay network, we investigate three different secure transmission strategies, for example, noncooperative strategy, conventional amplify-and-forward (AF) strategy, and cooperative jamming (CJ) strategy. To thoroughly assess the secrecy performance achieved by the three strategies, we derive the closed-form expressions for the connection outage probability and secrecy outage probability regarding each strategy. Based on these expressions, the reliability and security tradeoff (RST) is examined to facilitate the design of the transmitting parameters. We then present the closed-form expression for the effective secrecy throughput (EST) and characterize the overall efficiency of these transmission strategies. Furthermore, we conduct the asymptotic analysis for the secrecy throughput, which enables us to determine the optimal transmission strategy under different scenarios. Our analytical and numerical results demonstrate that compared with the noncooperative and AF strategies, the CJ strategy possesses the best performance in terms of RST. Additionally, we also find that the EST performance of the AF strategy is nearly invariable when the quality of the second hop changes.

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Capacity Scaling and Diversity Order for Secure Cooperative Relaying With Untrustworthy Relays

Cited by 47 publications

References 36 publications

Secure wireless powered relaying networks: Energy harvesting policies and performance analysis

Secure wireless powered relaying networks: Energy harvesting policies and performance analysis

On the Definition of Diversity Order Based on Renyi Entropy for Frequency Selective Fading Channels

Cooperative Secure Transmission in the Presence of Untrusted Relay

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