Performance Evaluation of UAV-Enabled Cellular Networks With Battery-Limited Drones

Unmanned aerial vehicles (UAVs) can be used as flying base stations (BSs) to offload Macro-BSs in hotspots. However, due to the limited battery on-board, UAVs can typically stay in operation for less than 1.5 hours. Afterward, the UAV has to fly back to a dedicated charging station that recharges/re...

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Bibliographic Details
Published in:IEEE communications letters 2020-12, Vol.24 (12), p.2664-2668
Main Authors: Qin, Yujie, Kishk, Mustafa A., Alouini, Mohamed-Slim
Format: Article
Language:English
Subjects:
availability probability
Batteries
Cellular communication
Cellular networks
Charging
Charging stations
coverage probability
drone
Drone aircraft
Drone vehicles
Geometry
Performance evaluation
Poisson point process
Power demand
Probability
Rechargeable batteries
Rotors
Spatial distribution
Stations
Stochastic geometry
Unmanned aerial vehicles
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Summary:Unmanned aerial vehicles (UAVs) can be used as flying base stations (BSs) to offload Macro-BSs in hotspots. However, due to the limited battery on-board, UAVs can typically stay in operation for less than 1.5 hours. Afterward, the UAV has to fly back to a dedicated charging station that recharges/replaces the UAV's battery. In this letter, we study the performance of a UAV-enabled cellular network while capturing the influence of the spatial distribution of the charging stations. In particular, we use tools from stochastic geometry to derive the coverage probability of a UAV-enabled cellular network as a function of the battery size, the density of the charging stations, and the time required for recharging/replacing the battery.
ISSN:1089-7798
1558-2558
DOI:10.1109/LCOMM.2020.3013286