Off-body channel measurements at 2.4 GHz and 868 MHz in an indoor environment
Authors: 
Evangelos Mellios, Angelos Goulianos, Sema Dumanli, Geoffrey S. Hilton, Robert J. Piechocki, Ian J. CraddockAuthors Info & Claims
Evangelos Mellios, Angelos Goulianos, Sema Dumanli, Geoffrey S. Hilton, Robert J. Piechocki, Ian J. CraddockAuthors Info & ClaimsPages 5 - 11
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.
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- Off-body channel measurements at 2.4 GHz and 868 MHz in an indoor environment
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Published In
September 2014
385 pages
ISBN:9781631900471
Publisher
ICST (Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering)
Brussels, Belgium
Publication History
Published: 29 September 2014
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