Off-body channel measurements at 2.4 GHz and 868 MHz in an indoor environment

Evangelos Mellios, Angelos Goulianos, Sema Dumanli, Geoffrey S. Hilton, Robert J. Piechocki, Ian J. Craddock

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

11 Citations (Scopus)

Abstract

This paper presents an off-body wireless channel measurement campaign at 2.4 GHz and 868 MHz in an indoor laboratory environment. The performance of different 2.4 GHz antennas is evaluated and it is found that chest-mounted directional patch antennas result in an average of 4 dB higher channel gain than horizontally polarised omnidirectional ones. Comparison of propagation at 2.4 GHz and at 868 MHz shows that when omnidirectional on-body antennas are used in both bands, the lower frequency results in an average of 5 dB higher channel gain. However, when directional patches are employed at 2.4 GHz, the advantage of the 868 MHz is only about 1 dB. Finally, a measurement-based channel model suitable for narrowband system-level simulations is presented.

Original languageEnglish
Title of host publicationBODYNETS 2014 - 9th International Conference on Body Area Networks
PublisherInstitute for Computer Sciences, Social Informatics and Telecommunications Engineering (ICST)
Pages5-11
Number of pages7
ISBN (Electronic)9781631900471
DOIs
Publication statusPublished - 21 Nov 2014
Event9th International Conference on Body Area Networks, BODYNETS 2014 - London, United Kingdom
Duration: 29 Sep 20141 Oct 2014

Conference

Conference9th International Conference on Body Area Networks, BODYNETS 2014
CountryUnited Kingdom
CityLondon
Period29/09/141/10/14

Structured keywords

  • Digital Health

Keywords

  • 2.4 GHz band
  • 868 MHz band
  • Indoor propagation
  • Off-body channel measurements
  • On-body antennas
  • WBANs

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