University of Oulu

T. Kumpuniemi, J. P. Mäkelä, M. Hämäläinen, K. Y. Yazdandoost and J. Iinatti, "Dynamic UWB off-body radio channels — Human body shadowing effect," 2017 IEEE 28th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC), Montreal, QC, 2017, pp. 1-7. doi: 10.1109/PIMRC.2017.8292584

Dynamic UWB off-body radio channels : human body shadowing effect

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Author: Kumpuniemi, Timo1; Mäkelä, Juha-Pekka1; Hämäläinen, Matti1;
Organizations: 1Centre for Wireless Communications University of Oulu Oulu, Finland
Format: article
Version: accepted version
Access: open
Online Access: PDF Full Text (PDF, 0.5 MB)
Persistent link: http://urn.fi/urn:nbn:fi-fe2018062826577
Language: English
Published: Institute of Electrical and Electronics Engineers, 2017
Publish Date: 2018-06-28
Description:

Abstract

Dynamic off-body ultra wideband channels are examined by way of anechoic chamber measurements at a 3-5 GHz frequency band in frequency domain with a help of a fast sweeping vector network analyzer. Five antenna locations on the body are selected: right wrist, left wrist with an antenna on the palm or back side, left arm (AL) and left ankle (LA). The off body node is set at a pole (PO). Two in-house designed and manufactured prototype antennas, dipole and double loop, are used in cases with both similar and dissimilar antennas in a link. Depending on the case, the path loss (PL) ranges between 46.2-87.9 dB. The LA-PO has the highest and AL-PO the lowest average PLs. The PL amplitudes follow the inverse Gaussian distribution. Based on the level crossing rate the LA-PO has the deepest fading conditions and the AL-PO is the most stable link. The LA-PO has the largest average fade duration (AFD) at the thresholds below 0 dB. The AFD is larger on the average with the dipole than the double loop. The comparison of similar vs. dissimilar antenna pairs shows no major difference in the performance.

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Series: IEEE International Symposium on Personal, Indoor, and Mobile Radio Communications workshops
ISSN: 2166-9570
ISSN-E: 2166-9589
ISSN-L: 2166-9570
ISBN: 978-1-5386-3531-5
ISBN Print: 978-1-5386-3529-2
Pages: 1 - 7
DOI: 10.1109/PIMRC.2017.8292584
OADOI: https://oadoi.org/10.1109/PIMRC.2017.8292584
Host publication: The 28th Annual IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (IEEE PIMRC 2017), 2017
Conference: IEEE International Symposium on Personal, Indoor and Mobile Radio Communications
Type of Publication: A4 Article in conference proceedings
Field of Science: 213 Electronic, automation and communications engineering, electronics
Subjects:
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