STBC AF relay for unmanned aircraft system

Fumiyuki Adachi, Hiroyuki Miyazaki, Chikara Endo

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


If a large scale disaster similar to the Great East Japan Earthquake 2011 happens, some areas may be isolated from the communications network. Recently, unmanned aircraft system (UAS) based wireless relay communication has been attracting much attention since it is able to quickly re-establish the connection between isolated areas and the network. However, the channel between ground station (GS) and unmanned aircraft (UA) is unreliable due to UA's swing motion and as consequence, the relay communication quality degrades. In this paper, we introduce space-time block coded (STBC) amplify-and-forward (AF) relay for UAS based wireless relay communication to improve relay communication quality. A group of UAs forms single frequency network (SFN) to perform STBC-AF cooperative relay. In STBC-AF relay, only conjugate operation, block exchange and amplifying are required at UAs. Therefore, STBC-AF relay improves the relay communication quality while alleviating the complexity problem at UAs. It is shown by computer simulation that STBC-AF relay can achieve better throughput performance than conventional AF relay.

Original languageEnglish
Title of host publicationBroadband Access Communication Technologies IX
EditorsBenjamin B. Dingel, Katsutoshi Tsukamoto
ISBN (Electronic)9781628414776
Publication statusPublished - 2015
EventBroadband Access Communication Technologies IX - San Francisco, United States
Duration: 2015 Feb 102015 Feb 12

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X


ConferenceBroadband Access Communication Technologies IX
Country/TerritoryUnited States
CitySan Francisco


  • Cooperative relay communication
  • Space-time block coding
  • Unmanned aircraft system


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