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Energy efficient placement of UAVs in wireless backhaul networks

Published: 07 October 2020 Publication History

Abstract

The enormous increase in cellular users requires novel advancements in the existing cellular infrastructure. Therefore, small cell networks (SCNs) are a promising solution to meet the ever-growing demands of cellular users as they are beneficial in terms of coverage and providing higher data rates. However, one of the challenging parts is the deployment of small cell base stations (SBs) and their connectivity with the backhaul network. In this paper, we use the scalable idea of replacing the terrestrial backhaul network with an aerial network to provide fronthaul connectivity to SBs. In particular, we address the optimum placement of unmanned aerial vehicles (UAVs) to associate the SBs such that the sum-rate of the overall network is maximized. We achieve such an objective by proposing a two-layer framework, i.e., unsupervised learning and iterative algorithm (defined as UAV equalizer), and we call this two-layer framework as a hybrid approach. Simulation results show that the proposed hybrid approach outperforms the traditional approaches in terms of maximizing the sum-rate, minimum bandwidth consumption, moreover, maximizing link utilization and energy efficiency.

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cover image ACM Conferences
DroneCom '20: Proceedings of the 2nd ACM MobiCom Workshop on Drone Assisted Wireless Communications for 5G and Beyond
September 2020
105 pages
ISBN:9781450381055
DOI:10.1145/3414045
Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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Publication History

Published: 07 October 2020

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Author Tags

  1. 5G
  2. backhaul/fronthaul network
  3. small cell networks
  4. unmanned aerial vehicles (UAVs)
  5. unsupervised learning

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  • (2023)Framework for fast and low-complexity deployment of UAVs-assisted communicationPhysical Communication10.1016/j.phycom.2023.10219861(102198)Online publication date: Dec-2023
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  • (2022)UAV Trajectory Optimization and Choice for UAV Placement for Data Collection in Beyond 5G NetworksIntelligent Unmanned Air Vehicles Communications for Public Safety Networks10.1007/978-981-19-1292-4_6(133-144)Online publication date: 7-May-2022
  • (2021)Backhaul-Aware Intelligent Positioning of UAVs and Association of Terrestrial Base Stations for Fronthaul ConnectivityIEEE Transactions on Network Science and Engineering10.1109/TNSE.2021.30773148:4(2742-2755)Online publication date: 1-Oct-2021
  • (2021)RNN-Based Twin Channel Predictors for CSI Acquisition in UAV-Assisted 5G+ Networks2021 IEEE Global Communications Conference (GLOBECOM)10.1109/GLOBECOM46510.2021.9685990(1-6)Online publication date: 7-Dec-2021
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