Underlay Drone Cell for Temporary Events: Impact of Drone Height and Aerial Channel Environments

Abstract

Providing seamless connection to a large number of devices is one of the biggest challenges for the Internet of Things (IoT) networks. Using a drone as an aerial base station (ABS) to provide coverage to devices or users on ground is envisaged as a promising solution for IoT networks. In this paper, we consider a communication network with an underlay ABS to provide coverage for a temporary event, such as a sporting event or a concert in a stadium. Using stochastic geometry, we propose a general analytical framework to compute the uplink and downlink coverage probabilities for both the aerial and the terrestrial cellular system. Our framework is valid for any aerial channel model for which the probabilistic functions of line-of-sight (LOS) and non-line-of-sight (NLOS) links are specified. The accuracy of the analytical results is verified by Monte Carlo simulations considering two commonly adopted aerial channel models. Our results show the non-trivial impact of the different aerial channel environments (i.e., suburban, urban, dense urban and high-rise urban) on the uplink and downlink coverage probabilities and provide design guidelines for best ABS deployment height.

Design and Analysis of Aerial-Terrestrial Network: A Joint Solution for Coverage and Rate

“…However, in our recent work [26], we focused on improving the CP of aerial-terrestrial networks using microwave frequencies in an orthogonal manner. Besides, the work in [27] considered an integrated aerialterrestrial network where both the T-BS and A-BS share the same microwave spectrum, and analyses downlink and uplink coverage performance. Similar to [27], the authors in [28] investigated the coverage performance of aerialterrestrial network utilizing microwave RAT.…”

“…Besides, the work in [27] considered an integrated aerialterrestrial network where both the T-BS and A-BS share the same microwave spectrum, and analyses downlink and uplink coverage performance. Similar to [27], the authors in [28] investigated the coverage performance of aerialterrestrial network utilizing microwave RAT. Moreover, the work in [29] considers a downlink aerial-terrestrial network comprising of T-BS and A-BS, where both stations operate at microwave frequency and investigate coverage and rate performance.…”

A survey of radio propagation channel modelling for low altitude flying base stations

“…For future perspective, UAVs will not only be used as a flying BS or relay. Instead, they will remain connected with everything [47,86] i.e. Internet of Things (IoT), which for example may need to establish a communication link with indoor and outdoor electronic devices.…”

NOMA-aided UAV Communications over Correlated Rician Shadowed Fading Channels

“…Under the BPP model, a fixed number of UAVs are uniformly distributed in a finite-sized cell [29], [30]. Modeling the spatial location of UAVs in UCSs using BPP have been noted in recent studies, e.g., [29]- [31], [33]. However, the BPP model has not been extensively utilized to analyze NOMA-aided UCSs.…”