Xiaoyu Liu

TL;DR: The maximal output signal-to-noise ratio (SNR) expression for the ISUCN, where multi-antenna UAV is employed as an aerial relay with threshold-based amplify-and-forward protocol to assist signal transmission between satellite and multiple ground users, is obtained.

TL;DR: An analytical expression for the outage probability (OP) of the considered SATN with a variable-gain amplify-and-forward (AF) protocol is derived and the asymptotical OP expression in high signal-to-noise ratio regime is presented to evaluate the achievable diversity order of the system.

TL;DR: In this paper, the uplink transmission in a satellite-aerial-terrestrial network (SATN), where an aerial platform acts as an amplify-and-forward relay assisting the communication between multiple users and satellite, is investigated.

TL;DR: This paper proposes a simple transmit scheme combining Alamouti space time block coding with receive beamforming to improve the system performance and derives the average symbol error rate (ASER) of the system with the proposed transmit scheme, where the satellite links undergo correlated shadow-Rician fading.

TL;DR: This letter investigates the outage performance of an optical feeder link in satellite communications, where the gateway is equipped with multiple apertures and employs diversity combining schemes to mitigate the effect of atmosphere turbulence.