NDLI: Specific absorption rate reduction based on outage probability analysis for wireless capsule endoscope with spatial receive diversity

Content Provider	IET Digital Library
Author	Anzai, Daisuke Aoyama, Sho Wang, Jianqing
Abstract	This study investigates the effect of spatial receive diversity on specific absorption rate (SAR) reduction based on outage probability analysis for wireless capsule endoscope (WCE). The communication performance of WCE depends much on the transmit power, which is strictly regulated in order to satisfy a safety guideline in terms of SAR, whereas WCE requires high communication performance due to its real-time data transmission. For the purpose of SAR reduction for a WCE scenario, the authors pay attention to the expectation that applying spatial diversity reception to WCE systems can not only improve the wireless communication performance but also reduce SAR. To begin with, based on finite-difference time-domain simulations with a numerical human body model, the outage probability is calculated under this implant propagation channel and the required transmit power is derived to secure a permissible outage probability. Then, the local peak SAR is calculated under the required transmit power when the WCE moves through the digestive organs. Finally, the simulation results demonstrate that applying spatial diversity reception can significantly reduce SAR for WCE.
Starting Page	695
Ending Page	700
Page Count	6
ISSN	17518725
Volume Number	8
e-ISSN	17518733
Issue Number	Issue 10, Jul (2014)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-map/8/10
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-map.2013.0427
Journal	IET Microwaves, Antennas & Propagation
Publisher Date	2014-03-03
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Biological Organs Biomedical Communication Biomedical Imaging/measurement Body Area Network Data Communication Digestive Organ Endoscopes Finite Difference Time-Domain Analysis Finite-difference Time-domain Simulation Human Body Model Implant Propagation Channel Numerical Approximation And Analysis Numerical Method Optical And Laser Radiation Orthotics Outage Probability Analysis Probability Probability Theory Prosthetics Prosthetics And Other Practical Application Real-time Data Transmission SAR Spatial Diversity Reception Speciflc Absorption Rate Reduction Statistics Stochastic Linearised SCUC WCE Wireless Capsule Endoscope Wireless Communication System
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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