Adaptive channel selection in IEEE 802.15.4 TSCH networks

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

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Abstract

Time-Slotted Channel Hopping (TSCH) from the IEEE 802.15.4-2015 standard uses channel hopping to combat interference and frequency-selective fading. Due to the pseudo-random nature of TSCH standard channel hopping process, the energy usage and end-to-end delay achieved in statically configured TSCH networks are suboptimal when compared to using a dynamically updated set of channels. We investigate and compare the advantages of several different adaptive channel selection metrics and methods under the presence of external, frequency-specific interference. In our experiments, PRR-based channel quality assessment with downstream-driven channel selection shows the best results. It is able to reliably distinguish between heavily-interfered and lightly-interfered channels, reduces the number of packet retransmissions up to 2.7 times, achieves up to 22 % lower average radio-on time, and shows close-to 100 % PDR even under heavy interference.
Original languageEnglish
Title of host publicationGlobal Internet of Things Summit (GIoTS), 2017
Subtitle of host publicationProceedings of a meeting held 6-9 June 2017, Geneva, Switzerland
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages207-212
Number of pages6
ISBN (Electronic)9781509058730
ISBN (Print)9781509058747
DOIs
Publication statusPublished - Aug 2017
EventGlobal Internet of Things Summit - Switzerland, Geneva
Duration: 6 Jun 20179 Jun 2017
Conference number: 2017

Conference

ConferenceGlobal Internet of Things Summit
Abbreviated titleGIoTS
CityGeneva
Period6/06/179/06/17

Structured keywords

  • Digital Health

Keywords

  • Internet of Things
  • Radiofrequency interference
  • Time division multiple access
  • Digital Health

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