Synchronous Wearable Wireless Body Sensor Network Composed of Autonomous Textile Nodes

Vanveerdeghem, Peter; Torre, Patrick Van; Stevens, Christiaan; Knockaert, Jos; Rogier, Hendrik

doi:10.3390/s141018583

Cited by 21 publications

(11 citation statements)

References 28 publications

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“…Measurement data is forwarded between nodes worn at different locations on the same body or worn by different persons operating within a range of up to 50 m in Non Line-of-Sight (NLoS) radio propagation conditions. Further details of the hardware are documented in [ 12 ].…”

Section: Methodsmentioning

confidence: 99%

“…This paper discusses practical research on the performance of a wearable channel-based key-generating system, employing realistic body worn sensor nodes, of which the hardware and network performance were documented earlier [ 12 ]. The embedded software in the nodes has been modified to exchange packets between legitimate parties within a very narrow time slot, allowing the accurate estimation of the channel at both ends of the link.…”

Section: Introductionmentioning

confidence: 99%

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Channel-Based Key Generation for Encrypted Body-Worn Wireless Sensor Networks

Torre

2016

Sensors

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Body-worn sensor networks are important for rescue-workers, medical and many other applications. Sensitive data are often transmitted over such a network, motivating the need for encryption. Body-worn sensor networks are deployed in conditions where the wireless communication channel varies dramatically due to fading and shadowing, which is considered a disadvantage for communication. Interestingly, these channel variations can be employed to extract a common encryption key at both sides of the link. Legitimate users share a unique physical channel and the variations thereof provide data series on both sides of the link, with highly correlated values. An eavesdropper, however, does not share this physical channel and cannot extract the same information when intercepting the signals. This paper documents a practical wearable communication system implementing channel-based key generation, including an implementation and a measurement campaign comprising indoor as well as outdoor measurements. The results provide insight into the performance of channel-based key generation in realistic practical conditions. Employing a process known as key reconciliation, error free keys are generated in all tested scenarios. The key-generation system is computationally simple and therefore compatible with the low-power micro controllers and low-data rate transmissions commonly used in wireless sensor networks.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Channel-Based Key Generation for Encrypted Body-Worn Wireless Sensor Networks

Torre

2016

Sensors

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“…In many of these articles, a data fusion technique is used to integrate multiple data sources into meaningful information. The other 28 articles investigate only on-body sensors [ 109 , 110 , 111 , 112 , 113 , 114 , 115 , 116 , 117 , 120 , 121 , 122 , 123 , 124 , 125 , 126 , 128 , 129 , 130 , 131 , 132 , 133 , 134 , 135 , 136 , 141 , 142 ]. Moreover, half of the articles employ mobile devices such as smart phones or PDAs as base stations.…”

Section: Summary Of Recent Research Articlesmentioning

confidence: 99%

“…Therefore, classic Bluetooth is considered as the most popular technology among the included articles. On the other hand, 14 studies used ZigBee as the main wireless communication technology [ 114 , 115 , 116 , 118 , 120 , 121 , 124 , 125 , 126 , 127 , 132 , 133 , 134 , 135 , 137 , 139 ]. Therefore, ZigBee is considered as the second most popular technology among the included articles.…”

Section: Summary Of Recent Research Articlesmentioning

confidence: 99%

A Survey on Wireless Body Area Networks for eHealthcare Systems in Residential Environments

Ghamari

Janko

Sherratt

et al. 2016

Sensors

261

134

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Current progress in wearable and implanted health monitoring technologies has strong potential to alter the future of healthcare services by enabling ubiquitous monitoring of patients. A typical health monitoring system consists of a network of wearable or implanted sensors that constantly monitor physiological parameters. Collected data are relayed using existing wireless communication protocols to a base station for additional processing. This article provides researchers with information to compare the existing low-power communication technologies that can potentially support the rapid development and deployment of WBAN systems, and mainly focuses on remote monitoring of elderly or chronically ill patients in residential environments.

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“…Wireless on-body sensor nodes, composed of a dualpolarized textile patch antenna that serves as a platform for the flexible electronic circuits, were deployed on the bodies of test persons [7]. The on-body sensor nodes placed upon Alice and Bob operated fully-autonomous while Eve's on-body sensor nodes was connected to a laptop, which was used as the central storage for all RSS values of one measurement: RSS from Alice to Bob (RSS AB ), RSS from Bob to Alice (RSS BA ), RSS from Alice to Eve (RSS AE ) and RSS from Bob to Eve (RSS BE ).…”

Section: Measurement Setupmentioning

confidence: 99%

RSS-based secret key generation for indoor and outdoor WBANs using on-body sensor nodes

Castel

Torre

Rogier

2016

2016 International Conference on Military Communications and Information Systems (ICMCIS)

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Abstract-Given that the market of wearables is in so-called hypergrowth mode, more and more of these on-body devices will interact with each other. These body-to-body, device-to-device links should not only provide reliable but also secure communication of personal user data. Therefore, we have analyzed the potential of using the unique reciprocal body-to-body channel between two legitimate parties, to create a high-level security key that is unknown to an eavesdropper. Both randomly moving legitimate parties, typically called Alice and Bob, were equipped with low-power wireless on-body sensor nodes, which collect the Received Signal Strength values. Additionally, the eavesdropper Eve, who is continuously sniffing the body-to-body channel using a third sensor node, collects her own sequence of RSS values, which are expected to be highly decorrelated from the RSS values from both Alice and Bob. Based on a statistical analysis, applied to Received Signal Strength values to verify the correlation, entropy and mutual information, the body-to-body link seems very suitable for RSS-based secret key generation in indoor and outdoor Wireless Body Area Networks. Moreover, this practical and lightweight alternative for secret key generation ensures low on-chip complexity and, hence, low computational power consumption.

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Synchronous Wearable Wireless Body Sensor Network Composed of Autonomous Textile Nodes

Cited by 21 publications

References 28 publications

Channel-Based Key Generation for Encrypted Body-Worn Wireless Sensor Networks

Channel-Based Key Generation for Encrypted Body-Worn Wireless Sensor Networks

A Survey on Wireless Body Area Networks for eHealthcare Systems in Residential Environments

RSS-based secret key generation for indoor and outdoor WBANs using on-body sensor nodes

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