Secure Transmission Design for Cognitive Radio Networks With Poisson Distributed Eavesdroppers

Xu, Xiaoming; He, Biao; Yang, Weiwei; Zhou, Xiangyun; Cai, Yueming

doi:10.1109/tifs.2015.2500178

Cited by 78 publications

(54 citation statements)

References 71 publications

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“…Moreover, antenna correlation improves the secrecy performance in the low SNR regime but degrades the secrecy performance in the moderate and high SNR regimes. In [21], the authors investigated PHYlayer security in an underlay cognitive radio (CR) network in the presence of randomly distributed eavesdroppers. For different CSI knowledge at the transmitting node, the authors proposed four transmission protocols to improve the secure transmission in the CR network.…”

Section: A Related Workmentioning

confidence: 99%

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QoS-Aware Enhanced-Security for TDMA Transmissions from Buffered Source Nodes

Shafie

Duong

Al-Dhahir

2017

IEEE Trans. Wireless Commun.

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Abstract-This paper proposes a cross-layer design to secure a set of buffered legitimate source nodes wishing to communicate with a common destination node using a time-division multipleaccess scheme. The users' assignment probabilities to the time slots are optimized to satisfy a certain quality-of-service (QoS) requirement for all the legitimate source nodes. To further improve the system security, we propose beamforming-based cooperative jamming schemes subject to the availability of the channel state information (CSI) at the legitimate nodes. We derive closed-form expressions for the instantaneous secrecy rate for each scheme as well as the secrecy outage probability. Moreover, we derive the secrecy stable-throughput and delay-requirement regions. In our proposed scheme, if a node is not selected for data transmission, it is a cooperative jamming node. We impose an average transmit power constraint on each source node. We investigate the cases where a global CSI is assumed at the legitimate nodes and where there is no eavesdropper's CSI. The case where there is no CSI at the jamming nodes is also investigated and a new scheme is proposed. Our proposed jamming schemes achieve significant increases in the secure throughput over existing schemes from the literature and over the no-jamming scheme.

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Section: A Related Workmentioning

confidence: 99%

“…APPENDIX D PROOF OF LEMMA 3 Starting with the instantaneous secrecy rate expression in (21), the secrecy outage probability for a fixed | j∈J φ * q,j h j,E | 2 is given by , we get the secrecy outage probability as follows…”

Section: Appendix Bmentioning

confidence: 99%

QoS-Aware Enhanced-Security for TDMA Transmissions from Buffered Source Nodes

Shafie

Duong

Al-Dhahir

2017

IEEE Trans. Wireless Commun.

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“…Thus, the SU must have a suitable power allocation policy which does not only satisfy the above constraints but also can obtain a reasonable performance. We assume that the Wyner wiretap code [16] is used for SU communication, and hence a positive rate, R 0 [ 0, should be maintained to provide secure communication for the SU, which can be defined by [42,45] …”

Section: Performance Metric For the Su Communicationmentioning

confidence: 99%

Power allocation policy and performance analysis of secure and reliable communication in cognitive radio networks

et al. 2017

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This paper investigates the problem of secure and reliable communications for cognitive radio networks. More specifically, we consider a single input multiple output cognitive model where the secondary user (SU) faces an eavesdropping attack while being subject to the normal interference constraint imposed by the primary user (PU). Thus, the SU must have a suitable power allocation policy which does not only satisfy the constraints of the PU but also the security constraints such that it obtains a reasonable performance for the SU, without exposing information to the eavesdropper. We derive four power allocation policies for different scenarios corresponding to whether or not the channel state information of the PU and the eavesdropper are available at the SU. Further, we introduce the concept secure and reliable communication probability (SRCP) as a performance metric to evaluate the considered system, as well as the efficiency of the four power allocation policies. Finally, we present numerical examples to illustrate the power allocation polices, and the impact of these policies on the SRCP of the SU.

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“…The difficulty of researching the secrecy performance in such wireless networks is how to model the random locations distribution of nodes accurately. Fortunately, stochastic geometry has provided a powerful tool to address this difficulty and achieved great success in ad hoc networks [9,10], random cognitive radio networks [11,12], and largescale cellular networks [13][14][15][16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

On Secrecy Outage Probability and Average Secrecy Rate of Large-Scale Cellular Networks

Tao

Yang

Cai

et al. 2018

Wireless Communications and Mobile Computing

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We investigate the secrecy performance in large-scale cellular networks, where both Base Stations (BSs) and eavesdroppers follow independent and different homogeneous Poisson point processes (PPPs). Based on the distances between the BS and user, the intended user selects the nearest BS as serving BS to transmit the confidential information. We first derive closedformed expressions of secrecy outage probability and average secrecy rate of a single-antenna system for both noncooperative and cooperative eavesdroppers scenarios. Then, to further improve the secrecy performance through additional spatial degrees of freedom, the above analyses generalize to the multiantenna scenario, where BSs employ the transmit antenna selection (TAS) scheme. Finally, the results show the small-scale fading has a considerable effect on the secrecy performance in certain density of eavesdroppers and small path loss exponent environment, and when the interference caused by BS is considered, the secrecy performance will be reduced. Moreover, the gap of secrecy performance between noncooperative and cooperative eavesdroppers cases is nearly invariable as the number of antennas increases.

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Secure Transmission Design for Cognitive Radio Networks With Poisson Distributed Eavesdroppers

Cited by 78 publications

References 71 publications

QoS-Aware Enhanced-Security for TDMA Transmissions from Buffered Source Nodes

QoS-Aware Enhanced-Security for TDMA Transmissions from Buffered Source Nodes

Power allocation policy and performance analysis of secure and reliable communication in cognitive radio networks

On Secrecy Outage Probability and Average Secrecy Rate of Large-Scale Cellular Networks

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