Xiangdong Jia

TL;DR: The results show that only when the power-scaling 2) is utilized, do the FD massive MIMO AF relay systems have the ability to restrict the loop interference, so that the system performance is free of loop interference when the number of antennas at the relay is large enough.

TL;DR: The approximated close-form expressions of the outage probabilities and the throughput of superposition coding relaying are obtained for the first time and a set of optimal solutions of system parameters are obtained by employing difference evolution arithmetic.

TL;DR: With the high signal-to-noise ratio (SNR) approximation, the statistical descriptions of the two-way opportunistic relaying amplify-and-forward channels (TWOR-AF) are investigated through the appropriate mathematic proof and simulations.

TL;DR: This work develops a novel and practical multi-UAV assisted multi-tier HetNet model which consists of clustered aerial UAV base stations and Poisson point process (PPP) based ground BSs (G-BSs) for emergency and crowded hotspot area and finds the proposed 4-tier association scheme outperforms the simple 2-tier one in terms of the average area throughput.

TL;DR: The authors analyse the symbol error probability (SEP) of the TW-DNF-OR systems under independent and non-identically distributed Rayleigh fading channels, and obtain the analytical expressions to the approximate upper bounds of the overall average SEPs.