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Article

MIMO Relaying UAVs Operating in Public Safety Scenarios

1
Radio Systems Department, ISCTE—Instituto Universitário de Lisboa, Av. das Forças Armadas, 1649-026 Lisbon, Portugal
2
IT—Instituto de Telecomunicações, Av. Rovisco Pais, 1, Torre Norte, Piso 10, 1049-001 Lisboa, Portugal
3
FCT—Universidade NOVA de Lisboa, Monte da Caparica, 2829-516 Caparica, Portugal
*
Author to whom correspondence should be addressed.
Academic Editor: Abderrahmane Lakas
Drones 2021, 5(2), 32; https://doi.org/10.3390/drones5020032
Received: 15 March 2021 / Revised: 12 April 2021 / Accepted: 22 April 2021 / Published: 26 April 2021
Methods to implement communication in natural and humanmade disasters have been widely discussed in the scientific community. Scientists believe that unmanned aerial vehicles (UAVs) relays will play a critical role in 5G public safety communications (PSC) due to their technical superiority. They have several significant advantages: a high degree of mobility, flexibility, exceptional line of sight, and real-time adaptative planning. For instance, cell edge coverage could be extended using relay UAVs. This paper summarizes the sidelink evolution in the 3GPP standardization associated with the usage of the device to device (D2D) techniques that use long term evolution (LTE) communication systems, potential extensions for 5G, and a study on the impact of circular mobility on relay UAVs using the software network simulator 3 (NS3). In this simulation, the transmitted packet percentage was evaluated where the speed of the UAV for users was changed. This paper also examines the multi-input multi-output (MIMO) communication applied to drones and proposes a new trajectory to assist users experiencing unfortunate circumstances. The overall communication is highly dependent on the drone speed and the use of MIMO and suitable antennas may influence overall transmission between users and the UAVs relay. When the UAVs relaying speed was configured at 108 km/h the total transmission rate was reduced to 55% in the group with 6 users allocated to each drone. View Full-Text
Keywords: UAV; drones; disasters; relaying; 4G; 5G; drone simulation; sidelink; NS3; MIMO UAV; drones; disasters; relaying; 4G; 5G; drone simulation; sidelink; NS3; MIMO
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MDPI and ACS Style

Viana, J.; Cercas, F.; Correia, A.; Dinis, R.; Sebastião, P. MIMO Relaying UAVs Operating in Public Safety Scenarios. Drones 2021, 5, 32. https://doi.org/10.3390/drones5020032

AMA Style

Viana J, Cercas F, Correia A, Dinis R, Sebastião P. MIMO Relaying UAVs Operating in Public Safety Scenarios. Drones. 2021; 5(2):32. https://doi.org/10.3390/drones5020032

Chicago/Turabian Style

Viana, Joseanne, Francisco Cercas, Américo Correia, Rui Dinis, and Pedro Sebastião. 2021. "MIMO Relaying UAVs Operating in Public Safety Scenarios" Drones 5, no. 2: 32. https://doi.org/10.3390/drones5020032

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