1 Introduction
2 Methods
-
We propose a UAV-enabled two-way relaying system with SWIPT. The system model distinguishes from the existing relaying systems, since the UEs are capable of PS protocol and multi-antennas are equipped at UEs.
-
A novel optimization problem is formulated by maximizing the sum remained energy of two UEs subject to both UAV and UEs transmission power, while guaranteeing the minimum signal-to-noise ratio (SNR) requirement at UEs.
-
We propose an alternating optimization (AO) scheme and a low-complexity scheme based on the generalized singular value decomposition (GSVD) for the formulated optimization problem.
-
Simulation and numerical results are conducted to evaluate the robustness and effectiveness of two proposed schemes. Besides, the location ratio has been investigated to analyze the performance of the relay system.