Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

A Case Study of Medical Device Wireless Coexistence Evaluation



Mohamed Al-Kalaa, Joshua Guag, Seth Seidman, Yao Ma, Jason Coder


This article aims to provide a narrative for addressing wireless coexistence in medical devices to help medical device developers, test engineers, and regulatory affairs personnel throughout the device life cycle. Accordingly, we present a case-study covering the coexistence evaluation process including the risk analysis of the wireless functionality of a hypothetical medical device, determining the corresponding risk category, specification of the device functional wireless performance (FWP), wireless coexistence testing, and measurement of the intended/untended signal ratio. Also, we propose a simple method for translating the test outcome into user recommendations for minimum/maximum separation distances between the device, its intended companion, and the source of unintended signals.
IEEE Electromagnetic Compatibility Magazine


wireless communication, performance evaluation, medical devices, electromagnetic compatibility, risk management, testing, signal to noise ratio


Al-Kalaa, M. , Guag, J. , Seidman, S. , Ma, Y. and Coder, J. (2020), A Case Study of Medical Device Wireless Coexistence Evaluation, IEEE Electromagnetic Compatibility Magazine, [online],, (Accessed June 16, 2024)


If you have any questions about this publication or are having problems accessing it, please contact

Created October 1, 2020, Updated February 15, 2022