Motivated by the need for ubiquitous and reliable communications in post-disaster emergency management systems (EMSs), we hereby present a novel and efficient stochastic geometry (SG) framework. This mathematical model is specifically designed to evaluate the quality of service (QoS) experienced by a typical ground user equipment (UE) residing either inside or outside a generic area affected by a calamity. In particular, we model the functioning terrestrial base stations (TBSs) as an inhomogeneous Poisson point process (IPPP), and assume that a given number of uniformly distributed unmanned aerial vehicles (UAVs) equipped with cellular transceivers is deployed in order to compensate for the damage suffered by some of the existing TBSs. The downlink (DL) coverage probability is then derived based on the maximum average received power association policy and the assumption of Nakagami-m fading conditions for all wireless links. The proposed numerical results show insightful trends in terms of coverage probability, depending on: distance of the UE from the disaster epicenter, disaster radius, quality of resilience (QoR) of the terrestrial network, and fleet of deployed ad-hoc aerial base stations (ABSs). The aim of this paper is therefore to prove the effectiveness of vertical heterogeneous networks (VHetNets) in emergency scenarios, which can both stimulate the involved authorities for their implementation and inspire researchers to further investigate related problems.
Efficient Trajectory Design and Communication Scheduling for Dual-UAV Jamming-Aided Secure Communication Networks
School of Electronic Information, Wuhan University(武汉大学电子信息学院);Chair of Information Theory and Data Analytics, RWTH Aachen University(亚琛工业大学信息理论与数据分析讲席)
Centralized PPO-Based DRL for Multi-UAV-BS Positioning and Trajectory Optimization in Disaster Response Networks
Universitat Politècnica de València (UPV)(瓦伦西亚理工大学);École Polytechnique Fédérale de Lausanne (EPFL)(洛桑联邦理工学院);Beihang Valencia Polytechnic Institute (BVPI)(北京航空航天大学瓦伦西亚理工学院);Research Institute for Digital Future, Khalifa University(哈利法大学数字未来研究院)
Curriculum-Guided Reinforcement Learning for Energy-Efficient UAV-ISAC in Post-Disaster Search-and-Rescue Operations
National Chung Cheng University(中正大学);Advanced Institute of Manufacturing with High-tech Innovations (AIM-HI), National Chung Cheng University(中正大学先进制造创新研究院)