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 Volume 8, Issue 11 (November 2021), Pages: 119-128


 Original Research Paper

 Title: 3D placements of drones in a millimeter-wave network to maximize the lifetime of wireless devices

 Author(s): Wa'ed Malkawi *, Hazim Shakhatreh, Ahmed Musa


 Department of Telecommunications Engineering, Hijjawi Faculty for Engineering Technology, Yarmouk University, Irbid, Jordan

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 * Corresponding Author. 

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In the last few years, the use of drones is increasing day by day in wireless networks and the applications of them are rapidly increased on different sides. Now, we can use the drone as an aerial base station (BS) to support cellular networks in emergency cases and in natural disasters. To take the advantage of both drones and fifth-generation (5G) and link between their features, we study an aerial BS considering millimeter waves (mm-waves). In this paper, we optimize the 3D placements for multiple unmanned aerial vehicles (UAVs) in an mm-wave network to achieve maximum time durations of the uplink transmission. First, we present a formulation for the placement problem, where we aim to allocate 3D locations for multiple UAVs to achieve the maximum sum of time durations of uplink transmissions. We propose an efficient algorithm to find the placements of UAVs. We propose an algorithm that starts by grouping the wireless devices into a number of clusters, and each cluster is served by a single UAV. After the clustering process, it applies the gradient projection-based algorithm (GP) or particle swarm optimization (PSO) in each cluster. In the results section, our proposed approach and the center projection algorithm will be compared to prove the efficiency of our approach. 

 © 2021 The Authors. Published by IASE.

 This is an open access article under the CC BY-NC-ND license (

 Keywords: mm-wave, UAV, Maximizing the lifetime, Disaster, Aerial BS

 Article History: Received 7 June 2021, Received in revised form 25 August 2021, Accepted 6 September 2021


No Acknowledgment.

 Compliance with ethical standards

 Conflict of interest: The author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.


 Malkawi W, Shakhatreh H, and Musa A (2021). 3D placements of drones in a millimeter-wave network to maximize the lifetime of wireless devices. International Journal of Advanced and Applied Sciences, 8(11): 119-128

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