@inproceedings{2eae93c707f646bcbdb09cf58387d33b,
title = "Investigation of in-body path loss in different human subjects for localization of capsule endoscope",
abstract = "Recent developments in capsule endoscopy have highlighted the need for accurate techniques to estimate the location of a capsule endoscope. A highly accurate location estimation of a capsule endoscope in the gastrointestinal (GI) tract in the range of several millimeters is a challenging task. This is mainly because the radio-frequency signals encounter high loss and a highly dynamic channel propagation environment. Therefore, an accurate path-loss model is required for the development of accurate localization algorithms. This paper presents an in-body path-loss model for the human abdomen region at 2.4 GHz frequency. To develop the path-loss model, electromagnetic simulations using the Finite-Difference Time-Domain (FDTD) method were carried out on two different anatomical human models. A mathematical expression for the path-loss model was proposed based on analysis of the measured loss at different capsule locations inside the small intestine. The proposed path-loss model is a good approximation to model in-body RF propagation, since the real measurements are quite infeasible for the capsule endoscopy subject.",
author = "Perzila Ara and Shaokoon Cheng and Michael Heimlich and Eryk Dutkiewicz",
year = "2015",
month = nov,
day = "4",
doi = "10.1109/EMBC.2015.7319627",
language = "English",
volume = "2015-November",
series = "IEEE Engineering in Medicine and Biology Society Conference Proceedings",
publisher = "Institute of Electrical and Electronics Engineers (IEEE)",
pages = "5461--5464",
booktitle = "2015 37th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2015",
address = "United States",
note = "37th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2015 ; Conference date: 25-08-2015 Through 29-08-2015",
}