Two-tier User Association and Resource Allocation Design for Integrated Satellite-Terrestrial Networks

no code implementations • 19 Mar 2023 • Hung Nguyen-Kha, Vu Nguyen Ha, Eva Lagunas, Symeon Chatzinotas, Joel Grotz

This paper presents a study of an integrated satellite-terrestrial network, where Low-Earth-Orbit (LEO) satellites are used to provide the backhaul link between base stations (BSs) and the core network.

LEO-to-User Assignment and Resource Allocation for Uplink Transmit Power Minimization

no code implementations • 2 Feb 2023 • Hung Nguyen-Kha, Vu Nguyen Ha, Eva Lagunas, Symeon Chatzinotas, Joel Grotz

This paper aims to develop satellite-user association and resource allocation mechanisms to minimize the total transmit power for integrated terrestrial and non-terrestrial networks wherein a constellation of LEO satellites provides the radio access services to both terrestrial base stations (BSs) and the satellite-enabled users (SUEs).

Joint UAV Placement and IRS Phase Shift Optimization in Downlink Networks

no code implementations • 14 Jul 2022 • Hung Nguyen-Kha, Hieu V. Nguyen, Mai T. P. Le, Oh-Soon Shin

This study investigates the integration of an intelligent reflecting surface (IRS) into an unmanned aerial vehicle (UAV) platform to utilize the advantages of these leading technologies for sixth-generation communications, e. g., improved spectral and energy efficiency, extended network coverage, and flexible deployment.