University of Oulu

M. Särestöniemi, C. Kissi, C. P. Raez, M. Hämäläinen and J. Iinatti, "Impact of the Antenna-Body Distance on the WBAN Channel Characteristics," 2019 13th International Symposium on Medical Information and Communication Technology (ISMICT), Oslo, Norway, 2019, pp. 1-6. doi: 10.1109/ISMICT.2019.8743894

Impact of the antenna-body distance on the WBAN channel characteristics

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Author: Särestöniemi, Mariella1; Kissi, Chaïmaâ2; Raez, Carlos Pomalaza3;
Organizations: 1Center for Wireless Communications, Faculty of Information Technology and Electrical Engineering, University of Oulu, Oulu, Finland
2Electronics and Telecommunication Systems Research Group, National School of Applied Sciences (ENSA), Ibn Tofail University, Kenitra, Morocco
3Department of Electrical and Computer Engineering, Purdue University, Fort Wayne, Indiana 46805, USA
Format: article
Version: accepted version
Access: open
Online Access: PDF Full Text (PDF, 2.2 MB)
Persistent link: http://urn.fi/urn:nbn:fi-fe2019082124950
Language: English
Published: Institute of Electrical and Electronics Engineers, 2019
Publish Date: 2019-08-21
Description:

Abstract

This paper presents a simulation based study on the impact of the antenna-body distance on the ultra wideband (uwb) on-body radio channel characteristics. The antenna used in this study is a recently published highly directional cavity-backed uwb antenna, designed for inbody communications, e.g. capsule endoscope localization. The on-body channel characteristics are evaluated both in frequency and time domains with several antenna-body distances as well as with several antenna location options. Furthermore, the impact of the antenna-body distance is evaluated by studying 3D power patterns, which also provide information about the propagation depth within tissues in different antenna-body distances. It is shown that antenna-body distance has a significant impact on the on-body channel characteristics. In time domain the difference can be 15 dB between the main peaks of the impulse responses whereas in frequency domain, the path loss difference can be even 30 dB within the frequency band of interest. Besides, antenna-body distance has a clear impact on the propagation depth inside the tissues as well.

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Series: International Symposium on Medical Information and Communication Technology
ISSN: 2326-828X
ISSN-E: 2326-8301
ISSN-L: 2326-828X
ISBN: 978-1-7281-2342-4
ISBN Print: 978-1-7281-2343-1
Pages: 1 - 6
DOI: 10.1109/ISMICT.2019.8743894
OADOI: https://oadoi.org/10.1109/ISMICT.2019.8743894
Host publication: 13th International Symposium on Medical Information and Communication Technology, ISMICT 2019
Conference: International Symposium on Medical Information and Communication Technology (ISMICT)
Type of Publication: A4 Article in conference proceedings
Field of Science: 213 Electronic, automation and communications engineering, electronics
Subjects:
Funding: This research has been financially supported by the project WBAN Communications in the Congested Environments and in part by Academy of Finland 6Genesis Flagship (grant 318927). Ilkka Virtanen, Timo Mäkinen, and Jari Sillanpää from University of Oulu deserve acknowledgement for their help to enable the exhaustive simulations. Furthermore, Dr. Markus Berg from CWC is acknowledged for his advices with the CST simulator.
Academy of Finland Grant Number: 318927
Detailed Information: 318927 (Academy of Finland Funding decision)
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