Joint Relay and Jammer Selection for Secure Two-Way Relay Networks

Chen, Jingchao; Zhang, Rongqing; Song, Lingyang; Han, Zhu; Jiao, Bingli

doi:10.1109/icc.2011.5962776

Cited by 83 publications

(98 citation statements)

References 33 publications

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“…Historically, physical layer security in wireless networks has been intensively investigated without the direct use of location information e.g., [26]- [46]. Initialized by the seminal work of Wyner [26], physical layer security has been recognized as an alternative for cryptographic techniques due to the fact that it directly exploits the randomness of wireless channels in order to offer secure data transmissions.…”

Section: Introductionmentioning

confidence: 99%

“…In [26]- [41], different techniques were investigated, including beamforming [27]- [34], artificial noise [35]- [37], and antenna selection [38]- [41]. When cooperative relaying is utilized, additional techniques can be deployed to boost physical layer security such as cooperative beamforming [42], relay selection [43], and cooperative jamming [44]- [46]. In the aforementioned works on physical layer security, it is commonly assumed that the average signal-to-noise ratio (SNR) of the eavesdropper is available at the transmitter.…”

Section: Introductionmentioning

confidence: 99%

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Location-Based Secure Transmission for Wiretap Channels

Liu

Yang

Yuan

et al. 2015

IEEE J. Select. Areas Commun.

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Location information has been shown to be useful for a wide variety of applications in wireless networks, while its role in physical layer security has so far drawn little attention. In this work, we propose a new location-based secure transmission scheme for wiretap channels, where the accurate locations of the sources, destinations and any other authorized transceivers are known, but only an estimate of the eavesdropper's location is available. We outline how such an estimate of the eavesdropper's location can still allow for quantitative assessment of key security metrics. To provide focus, we describe how optimization of the effective secrecy throughput of a relay wiretap channel is obtained in our scheme, and investigate in detail the impact of the location uncertainty on the system performance. The work reported here provides insights into the design of new location-based physical layer security schemes in which the only information available on an eavesdropper is a noisy estimate of her location.Index Terms-Location, wiretap channel, physical layer security, relay networks, artificial noise.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Location-Based Secure Transmission for Wiretap Channels

Liu

Yang

Yuan

et al. 2015

IEEE J. Select. Areas Commun.

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“…As for secure communications, [13] develops new achievable rate regions for the two-way wiretap channel. In [14], [15], two-way amplify-and-forward relay is used for providing secure communication in conventional networks.…”

Section: Introductionmentioning

confidence: 99%

Secure resource allocation in OFDMA-based cognitive radio networks with two-way relays

Alavi

Mokari

Saeedi

2015

2015 23rd Iranian Conference on Electrical Engineering

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In this paper, we consider a two-way cooperative communication framework to provide secure communications for secondary users within an Orthogonal Frequency-Division Multiple Access (OFDMA) based underlay cognitive network. By proposing a radio resource allocation problem with the aim of maximizing the secrecy sum-rate of secondary users and solving it, we show that deployment of relays is vital to achieve a non-zero secrecy sum rate. Also, impact of two-way relay in system performance improvement is clearly visible in comparison with one-way relay such that it can roughly double the resulting system secrecy sum-rate. The impact of different system parameters on the achievable secrecy sum rate for both one-way and two-way relay is also investigated and compared through simulations. Index Terms Physical (PHY) layer security, cognitive radio networks, Two-way communication, decode-and-forward relay

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“…For the relay selection, only channel gains are needed while full channel state information (CSI) is necessary for cooperative beamforming. [13] investigates the relay and jammer selection problem in the two-way relay networks. In [14] multiple relay cooperative beamforming combined with jamming is adopted to maximize the secrecy rate.…”

Section: Introductionmentioning

confidence: 99%

Two-phase cooperative jamming and beamforming for physical layer secrecy

Hatami

Jahandideh

Behroozi

2015

2015 23rd Iranian Conference on Electrical Engineering

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The broadcast nature of wireless communications makes the propagation medium vulnerable to security attacks such as eavesdropping and jamming from adversarial or unauthorized users. Applying physical layer secrecy approaches will enable the exchange of confidential messages over a wireless medium in the presence of unauthorized eavesdroppers, without using any secret keys. However, physical layer security approaches are typically feasible only when the source-eavesdropper channel is weaker than the source-destination channel. Cooperative jamming can be used to overcome this challenge and increase the secrecy rate. In this paper, the security of two-phase relaying system with multiple intermediate nodes and in the presence of an eavesdropper is investigated. To enhance the system secrecy rate, a joint cooperative beamforming and jamming combined with relay and jammer selections is proposed. In phase I, the source node broadcasts a signal to relays while three intermediate nodes (which act as jammers) help the source node by transmitting random jamming signals to confuse the eavesdropper. Since the friendly (cooperative) jammers create interference for both the intended relays and the eavesdropper, optimal beamforming is applied such that no interference is caused at two preselected desired relays (that are going to receive the confidential massage in phase I).In phase II, two preselected relays transmit the source message with beamforming coefficients such that the received signal at the eavesdropper is completely nulled out. Our goal in this paper is to minimize the received SNR at the eavesdropper while increasing it at the destination as much as possible by applying different methods such as cooperative beamforming, cooperative jamming and relay selection. To avoid operational complexity, we consider the minimum number of intermediate nodes that are necessary without losing the performance. Numerical results demonstrate the advantage of our proposed scheme compared with the scheme with no cooperative jamming.

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Joint Relay and Jammer Selection for Secure Two-Way Relay Networks

Cited by 83 publications

References 33 publications

Location-Based Secure Transmission for Wiretap Channels

Location-Based Secure Transmission for Wiretap Channels

Secure resource allocation in OFDMA-based cognitive radio networks with two-way relays

Two-phase cooperative jamming and beamforming for physical layer secrecy

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