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This paper investigates the secrecy performance of a multi-antenna land mobile satellite (LMS) communication system in the presence of an eavesdropper who wants to overhear the confidential message. Specifically, considering the active eavesdropping scenario, namely, the eavesdropper's CSI is available to the satellite, we derive the closed-form expression for the average secrecy capacity of the LMS...
This letter investigates the outage performance of a multi-antenna cognitive decode-and-forward (DF) hybrid satellite-terrestrial relay network (HSTRN) with beamforming (BF), where the secondary source and relay can coexist with the primary user (PU) as long as their interference imposed to PU is below a predefined threshold. Specifically, the novel closed-form expression for the outage probability...
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