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Reliability of the fat tissue channel for intra-body microwave communication
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Solid State Electronics. (Microwave Group)ORCID iD: 0000-0002-6899-1424
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Solid State Electronics.
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Solid State Electronics.
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Solid State Electronics.ORCID iD: 0000-0002-2876-223X
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2017 (English)In: 2017 IEEE Conference on Antenna Measurements & Applications (CAMA), IEEE, 2017, p. 310-313Conference paper, Published paper (Refereed)
Abstract [en]

Recently, the human fat tissue has been proposed as a microwave channel for intra-body sensor applications. In this work, we assess how disturbances can prevent reliable microwave propagation through the fat channel. Perturbants of different sizes are considered. The simulation and experimental results show that efficient communication through the fat channel is possible even in the presence of perturbants such as embedded muscle layers and blood vessels. We show that the communication channel is not affected by perturbants that are smaller than 15 mm cube.

Place, publisher, year, edition, pages
IEEE, 2017. p. 310-313
Series
IEEE Conference on Antenna Measurements & Applications, E-ISSN 2474-1760
Keywords [en]
microwaves, dielectric properties, fat channel, intra-body communication, phantom
National Category
Medical Engineering Computer Sciences
Identifiers
URN: urn:nbn:se:uu:diva-335483DOI: 10.1109/CAMA.2017.8273435ISI: 000425256200088ISBN: 978-1-5090-5028-4 (electronic)OAI: oai:DiVA.org:uu-335483DiVA, id: diva2:1163054
Conference
IEEE Conference on Antenna Measurements and Applications (CAMA), Tsukuba, Japan, December 04-06, 2017
Funder
VINNOVA, 2015-04159Available from: 2017-12-05 Created: 2017-12-05 Last updated: 2019-10-10Bibliographically approved
In thesis
1. Fat-IBC: A New Paradigm for Intra-body Communication
Open this publication in new window or tab >>Fat-IBC: A New Paradigm for Intra-body Communication
2019 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

In the last two decades, a significant development in the field of medical technology occurred worldwide. This development is characterized by the materialization of various body implants and worn devices, that is devices attached to the body. These devices assist doctors and paramedical staff in effectively monitoring the patient’s health and helping increase patients’ average life expectancy. Furthermore, the various implants inside the human body serve different purposes according to the humans’ needs. As this situation became more prominent, the development of protocols and of reliable transmission media is becomes essential to improve the efficiency of inter-device communications. Positive prospects of the use of human tissue for intra-body communication were proven in recent studies. Fat tissues, for example, which also work as energy banks for human beings, can be potentially used in intra-body communications as transmission media. In this thesis, the fat (adipose) tissue’s function as an intra-body communication channel was investigated. Therefore, various simulations and experimentations were performed in order to characterize the reliability of the fat tissue in terms of communication, considering, for example, the effect that the variability in the thickness of adipose and muscular tissues could have on the communication performance, and the possible effect that the variability in the transmitted signal power could have on the data packet reception. Fat tissue displays superior performance in comparison to muscle tissue in the context of a low loss communication channel. For example, at 2.45 GHz, the path losses of ~0.7 dB/cm and ~1.9 dB/cm were observed for phantom and ex-vivo measurements, respectively. At a higher frequency of 5.8 GHz, the ex-vivo path loss was around 1.4 dB/cm. It was concluded from the results that the adipose tissue could function as a reliable medium supporting intra-body communication even under low power transmitted signals. Moreover, although the presence of thick blood vessels could degrade the signal strength, the results show that communication is possible even under the presence of perturbant tissues. Overall, the results of this thesis would provide a foundation in this area and assist researchers in developing innovative and solutions for intra-body communication.

Place, publisher, year, edition, pages
Uppsala: Acta Universitatis Upsaliensis, 2019. p. 116
Series
Digital Comprehensive Summaries of Uppsala Dissertations from the Faculty of Science and Technology, ISSN 1651-6214 ; 1863
Keywords
Fat-Intrabody Communication, Fat Tissue, Microwave, Propagation, Data Packet Reception, Ex-vivo, Phantom, Communication, Reliability, Implants
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Research subject
Engineering Science with specialization in Microwave Technology
Identifiers
urn:nbn:se:uu:diva-393444 (URN)978-91-513-0770-1 (ISBN)
Public defence
2019-11-27, Häggsalen, Ångströmlaboratoriet, Lägerhyddsvägen 1, Uppsala, 09:15 (English)
Opponent
Supervisors
Available from: 2019-11-06 Created: 2019-10-10 Last updated: 2019-11-06

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Asan, Noor BadariahVelander, JacobRedzwan, SyaifulAugustine, RobinVoigt, Thiemo

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