Effective data gathering protocol in WSN-UAV employing priority-based contention window adjustment scheme

Say Sotheara, Naoto Aomi, Taisuke Ando, Jiang Liu, Norio Shiratori, Shigeru Shimamoto

Research output: Chapter in Book/Report/Conference proceedingConference contribution

11 Citations (Scopus)

Abstract

In this paper, we propose an effective data gathering protocol in an air-to-ground communication network employing priority-based contention window adjustment scheme. The proposed protocol adopts a conventional CSMA/CA. An unmanned aerial vehicle is used as a relay sink to collect data from a ground wireless sensor network. In our scheme, we divide the coverage area of UAV's beacon signal into many frames and each frame is assigned with different transmission priorities. In doing so, we introduce a priority-based optimized frame selection and circularly optimized frame selection scheme. In addition to POFS and COFS, PCWAS is proposed to define a lower contention window range to a higher transmission priority frame and a higher contention window range to a lower transmission priority frame. This approach not only minimizes the number of collisions; but also allows higher priority of data transmission to sensors that need to transmit first, so that the packet loss in communication link is dramatically reduced. Data transmission is handled from a higher to a lower priority frame. The simulation results show that the proposed approach achieves better system throughput, packet delivery ratio, and time delay.

Original languageEnglish
Title of host publication2014 IEEE Globecom Workshops, GC Wkshps 2014
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1475-1480
Number of pages6
ISBN (Print)9781479974702
DOIs
Publication statusPublished - 2014 Mar 18
Event2014 IEEE Globecom Workshops, GC Wkshps 2014 - Austin, United States
Duration: 2014 Dec 82014 Dec 12

Other

Other2014 IEEE Globecom Workshops, GC Wkshps 2014
CountryUnited States
CityAustin
Period14/12/814/12/12

Keywords

  • Circularly optimized frame selection (COFS)
  • Medium access control (MAC)
  • Priority-based contention window adjustment scheme (PCWAS)
  • Priority-based optimized frame selection (POFS)
  • Unmanned aerial vehicle (UAV)
  • Wireless sensor networks (WSN)

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Communication

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    Sotheara, S., Aomi, N., Ando, T., Liu, J., Shiratori, N., & Shimamoto, S. (2014). Effective data gathering protocol in WSN-UAV employing priority-based contention window adjustment scheme. In 2014 IEEE Globecom Workshops, GC Wkshps 2014 (pp. 1475-1480). [7063642] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/GLOCOMW.2014.7063642