RIS-enhanced UAV-assisted transmission rate optimization with anti-jamming

Abstract

With the rapid advancement of communication technologies, reconfigurable intelligent surface (RIS)-enhanced unmanned aerial vehicles (UAVs) have emerged as a promising solution for providing wireless communication services to ground users (GUs). However, due to the mobilities of both GUs and UAVs, as well as potential jamming, supporting high-quality wireless communications remains a significant challenge. To address this issue, in this paper, we propose a RIS-enhanced UAV-assisted uplink transmission rate optimization scheme with anti-jamming capabilities. Specifically, we first develop a RIS-enhanced UAV-assisted wireless communication framework, where the RIS-enhanced UAV facilitates data transmission between GUs and the base station (BS), while mitigating the effect of jamming. We then formulate an optimization problem aimed at maximizing the uplink transmission rate of each GU by optimizing the RIS’s phase shifts. Furthermore, we design a complex circular manifold optimization (CCMO)-based algorithm to achieve the optimal phase shift configuration. Finally, extensive simulations demonstrate that the proposed scheme outperforms benchmark schemes in terms of transmission rate.