On the secrecy performance of integrated satellite‐aerial‐terrestrial networks

Abstract

Summary This paper investigates secure transmission of an integrated satellite‐aerial‐terrestrial network (ISATN), where multiple eavesdroppers (Eves) attempt to overhear the satellite signals cooperatively. The ISATN adopts an unmanned aerial vehicle (UAV) equipped with multiple antennas as a relay with threshold‐based decode‐and‐forward (DF) protocol. By assuming that perfect instantaneous channel state information (CSI) of the satellite‐UAV link and the statistical CSI of the UAV‐user link are available, we first propose a beamforming (BF) scheme for maximizing the achievable secrecy rate (ASR) of the considered network. Then, we derive the analytical expressions of the secrecy outage probability (SOP) and ergodic secrecy rate (ESR) of the considered system with the BF strategy under an assumption that the satellite‐UAV link undergoes the shadowed‐Rician fading, while the UAV‐user link experiences the correlated Rayleigh fading. Finally, numerical results are given to demonstrate the superiority of the proposed BF scheme against zero forcing (ZF) and maximal ratio transmission (MRT) schemes and the validity of the secrecy performance analysis.

Hybrid Satellite–Terrestrial Networks toward 6G: Key Technologies and Open Issues

“…A beamforming scheme for maximizing the achievable secrecy rate (ASR) for a DF-based UAV relay equipped with multiple antennas was proposed in [ 210 ] to investigate secure transmission on an HSTN with multiple eavesdroppers.…”

Airplane-Aided Integrated Next-Generation Networking

“…L. Hanzo would like to acknowledge the financial support of the Engineering and Physical Sciences Research Council projects EP/P034284/1 and EP/P003990/1 (COALESCE) as well as of the European Research Council's Advanced Fellow Grant QuantCom (Grant No. 789028) coverage quality of terrestrial networks [18]- [23]. There have also been some attempts to integrate the space networks with terrestrial networks or to provide Internet coverage for airliner [24]- [31].…”

“…Works Applicability [18] Emergency networks [19] Vehicular networks [20] Broadbad connectivity [21] Cellular networks [22] 5G Cellular networks [23] Secure networks [24] Multi-media systems [25] Integration of space and HAP systems [26] Emergency networks [27] Cognitive communications…”

Performance analysis for the forward link of multiuser satellite communication systems

“…Recently, satellite communication (SatCom) has received considerable attention due to the fact that it provides seamless connectivity and high‐speed services for mobile users and other devices, especially in some remote areas where the terrestrial architectures are demanding but infeasible to be deployed 1–6 . Until now, quite a lot of works related to SatCom system have been investigated in open literature 7–9 .…”