Virtual Cell Based Resource Allocation for Efficient Frequency Utilization in Unmanned Aircraft Systems

Daisuke Takaishi, Yuichi Kawamoto, Hiroki Nishiyama, Nei Kato, Fumie Ono, Ryu Miura

Research output: Contribution to journalArticlepeer-review

49 Citations (Scopus)

Abstract

Recently, unmanned aircraft systems (UASs) have attracted attention as a new avenue for commercial services. Using the flexible mobility of unmanned aircrafts (UAs), commercial services can be operated in wide areas. However, there is a problem in the wireless communication between the UA and its ground station. When several UASs are operated within the neighboring airspace, wireless-communication conflicts occur. One of the most effective solutions for this issue is to decide the communication schedule using a time-division multiple access (TDMA) scheme. Furthermore, by spatially reusing the time slot, numerous UAs can be operated within the neighboring airspace, in a limited frequency band. In this paper, we propose an efficient time-slot allocation for enhancing the frequency resource utilization. Our proposed scheme determines the time-slot allocation considering the time-slot spatial reuse, using a virtual cell based space partitioning method. In addition, we consider the influence of the UA mobility on the network to decide the parameters for the proposed resource allocation system. The effectiveness of our proposed resource allocation is evaluated through computer-based simulation.

Original languageEnglish
Pages (from-to)3495-3504
Number of pages10
JournalIEEE Transactions on Vehicular Technology
Volume67
Issue number4
DOIs
Publication statusPublished - 2018 Apr

Keywords

  • Unmanned aircraft system (UAS)
  • channel access method
  • time division multiple access (TDMA)
  • unmanned aircraft (UA)
  • virtual cell-based

ASJC Scopus subject areas

  • Automotive Engineering
  • Aerospace Engineering
  • Electrical and Electronic Engineering
  • Applied Mathematics

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