Secure On-Off Transmission in mmWave Systems With Randomly Distributed Eavesdroppers

Yang, Weiwei; Tao, Liwei; Sun, Xiaoli; Ma, Ruiqian; Cai, Yueming; Zhang, Tao

doi:10.1109/access.2019.2898180

Cited by 29 publications

(25 citation statements)

References 43 publications

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“…This assumption applies to networks that combine broadcast and multicast transmissions when the eavesdroppers are active [25], [40], [41]. Furthermore, even for a passive eavesdropper, recent studies have shown that we can still detect the presence of passive eavesdroppers by unintentionally leaking local oscillator power from the radio frequency frontend of the eavesdropper receiver [42].…”

Section: B Directional Beamformingmentioning

confidence: 99%

“…Moreover, for mathematical tractability, it makes sense to approximate the antenna pattern with a sectorial model when simple maximum signal-to-noise ratio beam steering is assumed, where constant directional gains are assumed for both main lobe and side lobe [24]. By using a sectored antenna model, PLS of mmWave systems with different secure on-off transmission strategies in the presence of randomly distributed eavesdroppers was studied in [25]. The work in [20] investigated the secrecy performance of the noise-limited and the AN-assisted mmWave networks.…”

Section: Introductionmentioning

confidence: 99%

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An Analysis on Secure Millimeter Wave NOMA Communications in Cognitive Radio Networks

et al. 2020

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In this paper, an easy analysis framework is developed to evaluate the reliability and security of the secondary receivers (SU-Rxs) in millimeter wave (mmWave) non-orthogonal multiple access (NOMA) aided cognitive radio (CR) networks, where secondary transmitters (SU-Txs) transmit confidential messages to SU-Rxs belonging to different regions under the interference temperature constraint of the primary receiver (PU-Rx). Considering that randomly located eavesdroppers and primary user may be in the signal beam emitted by the SU-Txs, information leakage and interference to the primary network will be inevitable issues. Motivated by these challenges, combining the key features of multi-cell mmWave networks and NOMA communications, the closed-form expressions of three key performance metrics of connection outage probability (COP), secrecy outage probability (SOP), and secrecy throughput (ST) are derived by using the sector eavesdropper-exclusion zone, and the reliability and secrecy performance of the secondary networks are measured by different system parameters. The obtained performance evaluation results have demonstrated that the interference temperature constraint of the PU-Rx can be used to balance the security and reliability of the secondary networks. The reliability and security of paired NOMA users can be improved by using reasonable power allocation factor and sector eavesdropper-exclusion zone. Meanwhile, the connection performance of paired NOMA users is better than orthogonal multiple access (OMA). Furthermore, various system parameters can be reasonably set in conjunction with blockage and inter-cell interference to achieve optimal network's performance. INDEX TERMS Non-orthogonal multiple access (NOMA), millimeter wave (mmWave), cognitive radio (CR), stochastic geometry.

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Section: B Directional Beamformingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

An Analysis on Secure Millimeter Wave NOMA Communications in Cognitive Radio Networks

et al. 2020

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“…In our previous work [20], we have considered an UAV-enabled mmWave communication system, in which a source transmits the signals to a destination via a determined UAV relay, physical-layer security has been studied by using the 3D directional antenna pattern. It is worth mentioning that the on-off transmission [21,22], as an effective measure to guarantee the transmission quality and further enhance physical-layer security, still has not been investigated in UAV relay networks.…”

Section: Related Work and Motivationmentioning

confidence: 99%

“…Based on the above system model, there are multiple ground eavesdroppers monitoring the transmission of R 0 → D link and attempting to interpret the confidential messages. In order to enhance physical-layer security, the on-off transmission scheme is adopted at R 0 , as done in [21,22]. More specifically, based on the pilot signals from D, R 0 can obtain the channel capacity C R 0 D of the R 0 → D link.…”

Section: Relay Selection and Transmission Schemementioning

confidence: 99%

Secure On-Off Transmission in UAV Relay-Assisted mmWave Networks

Yang

Zhang

et al. 2019

Applied Sciences

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This paper investigates secure transmission in unmanned aerial vehicle (UAV) relay-assisted millimeter wave (mmWave) networks, where the selected UAV relay performs secure transmission in both the on-off and non-on-off schemes. Meanwhile, there are multiple eavesdroppers randomly distributed on the ground and attempting to wiretap the transmission. Leveraging the air-to-ground channel model and the tools of stochastic geometry, the novel expressions of transmit probability (TP) and secrecy outage probability (SOP) are derived in both the on-off and non-on-off transmission schemes with perfect beam alignment. The secrecy performance improvement is demonstrated in the on-off transmission scheme, and we find that there exists an optimal altitude of UAV relays to achieve the best TP. In addition, due to the limitations of UAV carriers, such as its low computational capacity and high mobility, the perfect beam alignment is difficult to achieve in the mmWave networks aided by UAV relays, and the effect of beam alignment error on the secrecy performance is investigated in the considered networks. Analyzing the numerical and simulation results, we find that the SOP will not have obvious deterioration when the beam alignment error is relatively small, and the SOP can be improved by using the antennas with a large number of elements. However, in high beam alignment error regime, the antenna arrays with a smaller number of elements will provide the better SOP.

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“…The main idea of PLS is to make use of the normal randomness of wireless communication channel to guarantee that the confidential information is transferred to the legitimate receiver and that the confidential information will not be decoded by illegal users [6][7][8][9][10]. Reference [11] provided a detailed, transparent and accurate information on the latest developments in the use of collaborative techniques to improve PLS.…”

Section: Introductionmentioning

confidence: 99%

Secure Transmission in mmWave Wiretap Channels: On Sector Guard Zone and Blockages

Song

Yang

Xiang

et al. 2019

Entropy

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Millimeter-wave (mmWave) communication is one of the key enabling technologies for fifth generation (5G) mobile networks. In this paper, we study the problem of secure communication in a mmWave wiretap network, where directional beamforming and link blockages are taken into account. For the secure transmission in the presence of spatially random eavesdroppers, an adaptive transmission scheme is adopted, for which sector secrecy guard zone and artificial noise (AN) are employed to enhance secrecy performance. When there exists no eavesdroppers within the sector secrecy guard zone, the transmitter only transmits information-bearing signal, and, conversely, AN along with information-bearing signal are transmitted. The closed-form expressions for secrecy outage probability (SOP), connection outage probability (COP) and secrecy throughput are derived under stochastic geometry. Then, we evaluate the effect of the sector secrecy guard zone and AN on the secrecy performance. Our results reveal that the application of the sector secrecy guard zone and AN can significantly improve the security of the system, and blockages also can be utilized to improve secrecy performance. An easy choice of transmit power and power allocation factor is provided for achieving higher secrecy throughput. Furthermore, increasing the density of eavesdroppers not always deteriorates the secrecy performance due to the use of the sector secrecy guard zone and AN.

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Secure On-Off Transmission in mmWave Systems With Randomly Distributed Eavesdroppers

Cited by 29 publications

References 43 publications

An Analysis on Secure Millimeter Wave NOMA Communications in Cognitive Radio Networks

An Analysis on Secure Millimeter Wave NOMA Communications in Cognitive Radio Networks

Secure On-Off Transmission in UAV Relay-Assisted mmWave Networks

Secure Transmission in mmWave Wiretap Channels: On Sector Guard Zone and Blockages

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