Secure Beamforming and Jamming for Multibeam Satellite Systems With Correlated Wiretap Channels

Cui, Gaofeng; Zhu, Qiping; Xu, Lexi; Wang, Weidong

doi:10.1109/tvt.2020.3018083

Cited by 34 publications

(12 citation statements)

References 25 publications

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“…γ g k,m and θ g k,m represent the off-axis angle from GEO satellites to LBC m at the GEO transmitter and the UD-LSC receiver, respectively. The antenna gain of the GEO and LEO satellite systems can be modeled as ( 5) [13].…”

Section: Signal and Interference Modelmentioning

confidence: 99%

Cooperative Beam Association and Power Allocation in UD-LEO Satellite Communication Networks: A Spectrum Sharing Manner

et al. 2022

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In recent years, the ultra-dense low Earth orbit (LEO) satellite communication (UD-LSC) networks such as SpaceX and OneWeb are under rapid development to provide worldwide and broadband services. However, the deployment of thousands of LEO satellites into space leads to the shortage of the orbital and the frequency resources. Spectrum sharing between geostationary Earth orbit (GEO) satellite systems and LEO satellite systems seems to be a promising way to alleviate the problem of restricted spectrum resources. In this paper, a joint cooperative beam association and power allocation scheme for the UD-LSC network to share the same spectrum with a GEO satellite system is considered. By exploiting the cooperative transmission between multiple LEO satellites, we first propose a many-to-many match game-based beam association (MGBA) algorithm to obtain a stable matching between LEO satellites and beam cells, and then, we propose a successive convex approximation (SCA)-based power allocation (SPA) algorithm to iteratively acquire the sub-optimal power allocation matrix. Simulation results show that the proposed MGBA-SPA scheme outperforms other contrast schemes from the perspective of communication satisfaction, and it realizes the balance between the traffic request and the provided capacity of each ground beam cell.

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Section: Signal and Interference Modelmentioning

confidence: 99%

Cooperative Beam Association and Power Allocation in UD-LEO Satellite Communication Networks: A Spectrum Sharing Manner

et al. 2022

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“…For HSTRN, the relay is adopted to forward signal due to the unavailability of the direct link between satellites and legitimate users. [7][8][9][10][11][12][13] Some of the relating researches have focused on the secrecy performances of the systems with different parameters. [7][8][9][10] The authors studied the ergodic secrecy rate performance of the hybrid satellite-terrestrial relay system with multiple eavesdroppers under two relay protocols in Reference 7.…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, many algorithms were proposed to improve secrecy performance. [11][12][13] A legitimate user scheduling scheme based on the multi-user system was put forward in Reference 11, while attention was paid to the cooperative jamming algorithm with the relays to obtain the optimal secrecy performance in Reference 12. Furthermore, the authors proposed a method of joint beamforming and power allocation via alternating optimization in Reference 13.…”

Section: Introductionmentioning

confidence: 99%

“…In satellite communication networks, the existing literature has emphatically conducted the PLS investigations of the hybrid satellite‐terrestrial relay network (HSTRN) and the land mobile satellite (LMS) system. For HSTRN, the relay is adopted to forward signal due to the unavailability of the direct link between satellites and legitimate users 7‐13 . Some of the relating researches have focused on the secrecy performances of the systems with different parameters 7‐10 .…”

Section: Introductionmentioning

confidence: 99%

“…And the influence of the Nakagami‐m fading channel was researched based on the network consisting of a multi‐antenna satellite, an amplify‐and‐forward relay, and multiple eavesdroppers in Reference 10. Moreover, many algorithms were proposed to improve secrecy performance 11‐13 . A legitimate user scheduling scheme based on the multi‐user system was put forward in Reference 11, while attention was paid to the cooperative jamming algorithm with the relays to obtain the optimal secrecy performance in Reference 12.…”

Section: Introductionmentioning

confidence: 99%

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Cooperative jamming in downlink satellite network with hardware impairments

et al. 2021

Trans Emerging Tel Tech

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In this article, a land mobile satellite communication network with an external jammer to fight against the eavesdropper is investigated, where the hardware impairments are introduced to make the analyses more practical. It is worth noting that three jamming schemes, that is, the Gaussian noise jamming, the friendly jamming, and the scheme without jamming, are taken into account to explore the effect of the jammer comprehensively. The secrecy metrics such as the connectivity outage probability (COP), the security outage probability, and the secrecy throughput (ST), are derived for the passive eavesdropping scenario, while the ergodic secrecy capacity is analyzed for the active eavesdropping scenario. Moreover, to get intuitive insight from the closed-form expressions, the asymptotic ST and the asymptotic COP under the condition of high signal-to-noise ratio are also considered. Finally, all the derivations are validated by Monte Carlo simulations, and the effects of different parameters on the performance of the network are analyzed.

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Secrecy satellite‐terrestrial downlink transmissions against randomly located eavesdroppers

Huang

Xiao

et al. 2022

Trans Emerging Tel Tech

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The satellite-terrestrial downlink transmissions with larger coverage areas face more severe security challenges than terrestrial cellular communications due to the limitation of the satellite's power and the complexity of the channel. In this paper, the system model consists of one satellite, one legitimate user and multiple randomly distributed eavesdroppers while taking into account practical hardware impairments (HIs) at all transceivers involved. The Shadowed-Rician fading model is adopted since it is a perfect fit for the satellite-terrestrial channel.Besides, the full-duplex (FD) operation is introduced in the destination where the receiver acquires the information signal and simultaneously emits the artificial noise (AN) to interfere with the nearby eavesdroppers. The maximal ratio combination scheme is applied to the destination to improve security. To facilitate evaluation of the effect of various parameters on the security performance, the closed-form expressions of secrecy outage probability and ergodic secrecy capacity for the system are derived under the stochastic geometry framework.Finally, the simulation results show that the AN plays a pivotal role in improving the security performance, while the HIs can greatly deteriorate the performance, especially in the high transmit power regime. In addition, compared with the traditional half-duplex receiver, the FD receiver have better security performance and can significantly alleviate the performance deterioration caused by HIs.

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Secure Beamforming and Jamming for Multibeam Satellite Systems With Correlated Wiretap Channels

Cited by 34 publications

References 25 publications

Cooperative Beam Association and Power Allocation in UD-LEO Satellite Communication Networks: A Spectrum Sharing Manner

Cooperative Beam Association and Power Allocation in UD-LEO Satellite Communication Networks: A Spectrum Sharing Manner

Cooperative jamming in downlink satellite network with hardware impairments

Secrecy satellite‐terrestrial downlink transmissions against randomly located eavesdroppers

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