Improved Reception of In-Body Signals by Means of a Wearable Multi-Antenna System

High data-rate wireless communication for in-body human implants is mainly performed in the 402–405 MHz Medical Implant Communication System band and the 2.45 GHz Industrial, Scientific and Medical band. The latter band offers larger bandwidth, enabling high-resolution live video transmission. Alth...

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Main Authors: Thijs Castel, Patrick Van Torre, Emmeric Tanghe, Sam Agneessens, Günter Vermeeren, Wout Joseph, Hendrik Rogier
Format: Article
Language:English
Published: Wiley 2013-01-01
Series:International Journal of Antennas and Propagation
Online Access:http://dx.doi.org/10.1155/2013/328375
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author Thijs Castel
Patrick Van Torre
Emmeric Tanghe
Sam Agneessens
Günter Vermeeren
Wout Joseph
Hendrik Rogier
author_facet Thijs Castel
Patrick Van Torre
Emmeric Tanghe
Sam Agneessens
Günter Vermeeren
Wout Joseph
Hendrik Rogier
author_sort Thijs Castel
collection DOAJ
description High data-rate wireless communication for in-body human implants is mainly performed in the 402–405 MHz Medical Implant Communication System band and the 2.45 GHz Industrial, Scientific and Medical band. The latter band offers larger bandwidth, enabling high-resolution live video transmission. Although in-body signal attenuation is larger, at least 29 dB more power may be transmitted in this band and the antenna efficiency for compact antennas at 2.45 GHz is also up to 10 times higher. Moreover, at the receive side, one can exploit the large surface provided by a garment by deploying multiple compact highly efficient wearable antennas, capturing the signals transmitted by the implant directly at the body surface, yielding stronger signals and reducing interference. In this paper, we implement a reliable 3.5 Mbps wearable textile multi-antenna system suitable for integration into a jacket worn by a patient, and evaluate its potential to improve the In-to-Out Body wireless link reliability by means of spatial receive diversity in a standardized measurement setup. We derive the optimal distribution and the minimum number of on-body antennas required to ensure signal levels that are large enough for real-time wireless endoscopy-capsule applications, at varying positions and orientations of the implant in the human body.
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institution Kabale University
issn 1687-5869
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language English
publishDate 2013-01-01
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record_format Article
series International Journal of Antennas and Propagation
spelling doaj-art-fc3b2345873f4ccf9da41b3aa75a5db62025-02-03T01:07:20ZengWileyInternational Journal of Antennas and Propagation1687-58691687-58772013-01-01201310.1155/2013/328375328375Improved Reception of In-Body Signals by Means of a Wearable Multi-Antenna SystemThijs Castel0Patrick Van Torre1Emmeric Tanghe2Sam Agneessens3Günter Vermeeren4Wout Joseph5Hendrik Rogier6Department of Information Technology, INTEC-IMEC, Ghent University, Sint-Pietersnieuwstraat 41, 9000 Ghent, BelgiumDepartment of Information Technology, INTEC-IMEC, Ghent University, Sint-Pietersnieuwstraat 41, 9000 Ghent, BelgiumDepartment of Information Technology, INTEC-IMEC, Ghent University, Sint-Pietersnieuwstraat 41, 9000 Ghent, BelgiumDepartment of Information Technology, INTEC-IMEC, Ghent University, Sint-Pietersnieuwstraat 41, 9000 Ghent, BelgiumDepartment of Information Technology, INTEC-IMEC, Ghent University, Sint-Pietersnieuwstraat 41, 9000 Ghent, BelgiumDepartment of Information Technology, INTEC-IMEC, Ghent University, Sint-Pietersnieuwstraat 41, 9000 Ghent, BelgiumDepartment of Information Technology, INTEC-IMEC, Ghent University, Sint-Pietersnieuwstraat 41, 9000 Ghent, BelgiumHigh data-rate wireless communication for in-body human implants is mainly performed in the 402–405 MHz Medical Implant Communication System band and the 2.45 GHz Industrial, Scientific and Medical band. The latter band offers larger bandwidth, enabling high-resolution live video transmission. Although in-body signal attenuation is larger, at least 29 dB more power may be transmitted in this band and the antenna efficiency for compact antennas at 2.45 GHz is also up to 10 times higher. Moreover, at the receive side, one can exploit the large surface provided by a garment by deploying multiple compact highly efficient wearable antennas, capturing the signals transmitted by the implant directly at the body surface, yielding stronger signals and reducing interference. In this paper, we implement a reliable 3.5 Mbps wearable textile multi-antenna system suitable for integration into a jacket worn by a patient, and evaluate its potential to improve the In-to-Out Body wireless link reliability by means of spatial receive diversity in a standardized measurement setup. We derive the optimal distribution and the minimum number of on-body antennas required to ensure signal levels that are large enough for real-time wireless endoscopy-capsule applications, at varying positions and orientations of the implant in the human body.http://dx.doi.org/10.1155/2013/328375
spellingShingle Thijs Castel
Patrick Van Torre
Emmeric Tanghe
Sam Agneessens
Günter Vermeeren
Wout Joseph
Hendrik Rogier
Improved Reception of In-Body Signals by Means of a Wearable Multi-Antenna System
International Journal of Antennas and Propagation
title Improved Reception of In-Body Signals by Means of a Wearable Multi-Antenna System
title_full Improved Reception of In-Body Signals by Means of a Wearable Multi-Antenna System
title_fullStr Improved Reception of In-Body Signals by Means of a Wearable Multi-Antenna System
title_full_unstemmed Improved Reception of In-Body Signals by Means of a Wearable Multi-Antenna System
title_short Improved Reception of In-Body Signals by Means of a Wearable Multi-Antenna System
title_sort improved reception of in body signals by means of a wearable multi antenna system
url http://dx.doi.org/10.1155/2013/328375
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