Drone Charging Stations Deployment in Rural Areas for Better Wireless Coverage: Challenges and Solutions

TL;DR

This paper explores deploying renewable energy charging stations for UAVs to improve wireless coverage in rural areas, addressing energy limitations and connectivity challenges with simulation-supported solutions.

Contribution

It introduces the concept of renewable energy charging stations for UAV-assisted rural networks, analyzing their potential to overcome UAV battery constraints.

Findings

RE charging stations can extend UAV operational time

Simulation shows improved coverage with RE stations

Renewable energy harvesting is feasible in rural UAV deployments

Abstract

While the fifth-generation cellular (5G) is meant to deliver Gigabit peak data speeds, low latency, and connect to billions of devices, and 6G is already on the way, half of the world population living in rural areas are still facing challenges connecting to the internet. Compared with urban areas, users in rural areas are greatly impacted by low income, high cost of backhaul connectivity, limited resources, extreme weather, and natural geographical limitations. Hereby, how to connect the rural areas and what are the difficulties of providing connectivity draw great attention. This article first provides a brief discussion about existing technologies and strategies for enhancing the network coverage in rural areas, their advantages, limitations, and cost. Next, we mainly focus on the UAV-assisted network in resource-limited regions. Considering the limitation of the on-board battery of UAVs and the electricity supply scarcity in some rural regions, we investigate the possibility and performance enhancement of the deployment of renewable energy (RE) charging stations. We outline three practical scenarios, and use simulation results to demonstrate that RE charging stations can be a possible solution to address the limited on-board battery of UAVs in rural areas, specially when they can harvest and store enough energy. Finally, future works and challenges are discussed.