Power- and delay-awareness of health telemonitoring services: the mobihealth system case study

Wac, Katarzyna; Bargh, Mortaza; Van Beijnum, Bert-Jan; Bults, Richard; Pawar, Pravin; Peddemors, Arjan

doi:10.1109/JSAC.2009.090514

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Title		Power- and delay-awareness of health telemonitoring services: the mobihealth system case study
Authors		Wac, Katarzyna Bargh, Mortaza Van Beijnum, Bert-Jan Bults, Richard Pawar, Pravin Peddemors, Arjan
Published in		IEEE Journal on Selected Areas in Communications. 2009, vol. 27, no. 4, p. 525-536
Abstract		Emerging healthcare applications rely on personal mobile devices to monitor and transmit patient vital signs to hospital-backend servers for further analysis. However, these devices have limited resources that must be used optimally in order to meet the application user requirements (e.g. safety, usability, reliability, performance). This paper reports on a case study of a Chronic Obstructive Pulmonary Disease telemonitoring application delivered by the MobiHealth system. This system relies on a commercial mobile device with multiple (wireless) Network Interfaces (NI). Our study focuses on how NI activation strategies affect the application end-to-end data delay (important in case of an emergency situation) and the energy consumption of the device (important for device sustainability while a patient is mobile). Our results show the trade-off between end-to-end delay and battery life-time achieved by various NI activation strategies, in combination with application-data flow adaptation for realtime and near real-time data transmission. For a given mobile device, our study shows an increase in battery life-time of 40- 90 %, traded against higher end-to-end data delay. The insights of our studies can be used for application-data flow adaptation aiming to increase battery life-time and device sustainability for mobile patients; which effectively increases the healthcare application usability.
Keywords		Mobile device connectivity management — Energy efficiency — End-to-end delay — Application adaptation — Mobile healthcare
Identifiers		DOI: 10.1109/JSAC.2009.090514
Full text		Article (Accepted version) (2.5 MB) - Limited access to UNIGE Other version: http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=4909288
Structures		Centres et instituts / Centre universitaire d'informatique Faculté d'économie et de management / Information Science Institute
Citation (ISO format)		WAC, Katarzyna et al. Power- and delay-awareness of health telemonitoring services: the mobihealth system case study. In: IEEE Journal on Selected Areas in Communications, 2009, vol. 27, n° 4, p. 525-536. doi: 10.1109/JSAC.2009.090514 https://archive-ouverte.unige.ch/unige:55832