Towards Easy-to-Use, Safe, and Secure Wireless Medical Body Sensor Networks

Towards Easy-to-Use, Safe, and Secure Wireless Medical Body Sensor Networks

Javier Espina (Philips Research Europe, the Netherlands), Heribert Baldus (Philips Research Europe, the Netherlands), Thomas Falck (Philips Research Europe, the Netherlands), Oscar Garcia (Philips Research Europe, the Netherlands) and Karin Klabunde (Philips Research Europe, the Net)
Copyright: © 2009 |Pages: 21
DOI: 10.4018/978-1-60566-332-6.ch009
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Abstract

Wireless body sensor networks (BSNs) are an indispensable building stone for any pervasive healthcare system. Although suitable wireless technologies are available and standardization dedicated to BSN communication has been initiated, the authors identify key challenges in the areas of easy-of-use, safety, and security that hinder a quick adoption of BSNs. To address the identified issues they propose using body-coupled communication (BCC) for the automatic formation of BSNs and for user identification. They also present a lightweight mechanism that enables a transparent security setup for BSNs used in pervasive healthcare systems.
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Introduction

Wireless Body Sensor Networks (BSNs) are an enabling technology for the paradigm shift towards pervasive health monitoring. Instead of the traditional event-driven model where patients go to their doctor only when they are sick, we envision that a person’s state of health is continuously monitored through the use of smart body-worn medical sensors to detect changes to the worse before a critical condition arises. Thereby emergency cases are prevented and both patients and care givers are empowered to act more proactive in general. However, pervasive health monitoring systems will be widely adopted only if users experience them as easy-to-use and trustworthy, which is a challenging task as we illustrate in this chapter.

Although several wireless technologies are available to allow body-worn sensors to communicate with one another, they all presume that the user has connected all her body sensors to a single network. But since existing wireless standards fail to provide support for setting up a network, this turns out to be a difficult job, asking too much of normal users. We propose a mechanism for making wireless body-worn medical sensors aware of the person they belong to by combining body-coupled with wireless communication. This enables a user to create a wireless BSN by just sticking the sensors to her body.

We exploit Body-Coupled Communication (BCC) to also eliminate the mixing up of medical data from different patients, which is a common source of errors. For this the user wears a personal identifier that broadcasts her unique user ID around her body. Thereby all her body-worn sensors are able to unambiguously annotate their readings with her ID.

Protecting the user’s privacy and ensuring confidentiality of medical data is essential for the acceptance of any pervasive healthcare system. To this end we describe a security system for BSNs that takes the resource constraints of tiny sensors into account and can be rolled out in an easy and unobtrusive way.

The remainder of the chapter is organized as follows. Section 1 introduces the concept of wireless medical BSNs by describing some sample applications and suitable available and upcoming wireless technologies. In Section 2 we present our approach for automatic network formation and user identification based on BCC. A lightweight security system for pervasive BSNs is described in detail in Section 3. In Section 4 we identify some future trends relevant for the deployment of BSNs followed by our conclusions in Section 5.

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Table of Contents
Chapter 1
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Chapter 2
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Accessing an Existing Virtual Electronic Patient Record with a Secure Wireles Architecture
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Chapter 3
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This chapter provides an overview of mobile personal health record (MPHR) systems. A Mobile personal health record is an eclectic application... Sample PDF
Personal Health Records Systems Go Mobile: Defining Evaluation Components
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Chapter 4
Ing Widya, HaiLiang Mei, Bert-Jan Beijnum, Jacqueline Wijsman, Hermie Hermens
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Chapter 5
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Chapter 6
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Chapter 7
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Chapter 8
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Chapter 9
Javier Espina, Heribert Baldus, Thomas Falck, Oscar Garcia, Karin Klabunde
Wireless body sensor networks (BSNs) are an indispensable building stone for any pervasive healthcare system. Although suitable wireless... Sample PDF
Towards Easy-to-Use, Safe, and Secure Wireless Medical Body Sensor Networks
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Chapter 10
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Chapter 11
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In this chapter, we present our experience in using mobile phones as a platform for real-time physiological monitoring and analysis. In particular... Sample PDF
Towards Wearable Physiological Monitoring on a Mobile Phone
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Chapter 12
Giovanni Russello, Changyu Dong, Naranker Dualy
In this chapter, the authors describe a new framework for pervasive healthcare applications where the patient’s consent has a pivotal role. In their... Sample PDF
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Chapter 13
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Chapter 15
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