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Data Packet Transmission through Fat Tissue for Wireless Intra-Body Networks
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Solid State Electronics. Universiti Teknikal Malaysia Melaka, Melaka Malaysia. (Microwave Group)ORCID iD: 0000-0002-6899-1424
Uppsala University, Disciplinary Domain of Science and Technology, Mathematics and Computer Science, Department of Information Technology, Computer Architecture and Computer Communication.
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Solid State Electronics.
Uppsala University, Disciplinary Domain of Science and Technology, Mathematics and Computer Science, Department of Information Technology.
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2017 (English)In: IEEE Journal of Electromagnetics, RF and Microwaves in Medicine and Biology, ISSN 2469-7249, Vol. 1, no 2, p. 43-51Article in journal (Refereed) Published
Abstract [en]

This work explores high data rate microwave communication through fat tissue in order to address the wide bandwidth requirements of intra-body area networks. We have designed and carried out experiments on an IEEE 802.15.4 based WBAN prototype by measuring the performance of the fat tissue channel in terms of data packet reception with respect to tissue length and power transmission. This paper proposes and demonstrates a high data rate communication channel through fat tissue using phantom and ex-vivo environments. Here, we achieve a data packet reception of approximately 96 % in both environments. The results also show that the received signal strength drops by ~1 dBm per 10 mm in phantom and ~2 dBm per 10 mm in ex-vivo. The phantom and ex-vivo experimentations validated our approach for high data rate communication through fat tissue for intrabody network applications. The proposed method opens up new opportunities for further research in fat channel communication. This study will contribute to the successful development of high bandwidth wireless intra-body networks that support high data rate implanted, ingested, injected, or worn devices

Place, publisher, year, edition, pages
2017. Vol. 1, no 2, p. 43-51
Keywords [en]
Intra-body communication, microwave, channel characterization, data packet, Software Defined Radio, GNU Radio, exvivo, phantom
National Category
Engineering and Technology Medical and Health Sciences
Identifiers
URN: urn:nbn:se:uu:diva-335351DOI: 10.1109/JERM.2017.2766561OAI: oai:DiVA.org:uu-335351DiVA, id: diva2:1162502
Projects
Eurostars project under Grant E-9655-COMFORTSwedish Vinnova project under Grant BDAS (2015-04159)Swedish Vinnova project under Reliable, interoperable and secure communication for body network (2017-03568)
Funder
eSSENCE - An eScience CollaborationVinnova, 2015-04159Vinnova, 2017-03568Available from: 2017-12-04 Created: 2017-12-04 Last updated: 2019-11-11Bibliographically 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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