Anatomical region-specific in vivo wireless communication channel characterization

Demir, A. F., Abbasi, Q. H. , Ankarali, Z. E., Alomainy, A., Qaraqe, K., Serpedin, E. and Arslan, H. (2017) Anatomical region-specific in vivo wireless communication channel characterization. IEEE Journal of Biomedical and Health Informatics, 21(5), pp. 1254-1262. (doi: 10.1109/JBHI.2016.2618890)

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Abstract

In vivo wireless body area networks (WBANs) and their associated technologies are shaping the future of healthcare by providing continuous health monitoring and noninvasive surgical capabilities, in addition to remote diagnostic and treatment of diseases. To fully exploit the potential of such devices, it is necessary to characterize the communication channel which will help to build reliable and high-performance communication systems. This paper presents an in vivo wireless communication channel characterization for male torso both numerically and experimentally (on a human cadaver) considering various organs at 915 MHz and 2.4 GHz. A statistical path loss (PL) model is introduced, and the anatomical region-specific parameters are provided. It is found that the mean PL in dB scale exhibits a linear decaying characteristic rather than an exponential decaying profile inside the body, and the power decay rate is approximately twice at 2.4 GHz as compared to 915 MHz. Moreover, the variance of shadowing increases significantly as the in vivo antenna is placed deeper inside the body since the main scatterers are present in the vicinity of the antenna. Multipath propagation characteristics are also investigated to facilitate proper waveform designs in the future wireless healthcare systems, and a rootmean- square (RMS) delay spread of 2.76 ns is observed at 5 cm depth. Results show that the in vivo channel exhibit different characteristics than the classical communication channels, and location dependency is very critical for accurate, reliable, and energy-efficient link budget calculations.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Abbasi, Professor Qammer
Authors: Demir, A. F., Abbasi, Q. H., Ankarali, Z. E., Alomainy, A., Qaraqe, K., Serpedin, E., and Arslan, H.
College/School:College of Science and Engineering > School of Engineering
Journal Name:IEEE Journal of Biomedical and Health Informatics
Publisher:IEEE
ISSN:2168-2194
ISSN (Online):2168-2208
Published Online:20 October 2016
Copyright Holders:Copyright © 2017 IEEE
First Published:First published in IEEE Journal of Biomedical and Health Informatics 21(5): 1254-1262
Publisher Policy:Reproduced in accordance with the copyright policy of the publisher

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