Coverage Analysis for Energy-Harvesting UAV-Assisted mmWave Cellular Networks

Xueyuan Wang, M. Cenk Gursoy

Research output: Contribution to journalArticle

4 Scopus citations

Abstract

In this paper, we jointly consider the downlink simultaneous wireless information and power transfer (SWIPT) and uplink information transmission in unmanned aerial vehicle (UAV)-assisted millimeter wave (mmWave) cellular networks, in which the user equipment (UE) locations are modeled using Poisson cluster processes (e.g., Thomas cluster processes or Matérn cluster processes). Distinguishing features of mmWave communications, such as different path loss models for line-of-sight (LOS) and non-LOS (NLOS) links and directional transmissions are taken into account. In the downlink phase, the association probability, and energy coverages of different tier UAVs and ground base stations (GBSs) are investigated. Moreover, we define a successful transmission probability to jointly present the energy and signal-to-interference-plus-noise ratio (SINR) coverages and provide general expressions. In the uplink phase, we consider the scenario that each UAV receives information from its own cluster member UEs. We determine the Laplace transform of the interference components and characterize the uplink SINR coverage. In addition, we formulate the average uplink throughput, with the goal to identify the optimal time division multiplexing between the donwlink and uplink phases. Through numerical results we investigate the impact of key system parameters on the performance. We show that the network performance is improved when the cluster size becomes smaller. In addition, we analyze the optimal height of UAVs, optimal power splitting value and optimal time division multiplexing that maximizes the network performance.

Original languageEnglish (US)
Article number8876702
Pages (from-to)2832-2850
Number of pages19
JournalIEEE Journal on Selected Areas in Communications
Volume37
Issue number12
DOIs
StatePublished - Dec 2019

Keywords

  • association probability
  • average throughput
  • coverage probability
  • energy harvesting
  • mmWave communication
  • SWIPT
  • UAV

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering

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