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Wireless LAN with Medical-Grade QoS for E-Healthcare

Title
Wireless LAN with Medical-Grade QoS for E-Healthcare
Authors
Lee, H[Lee, Hyungho]Park, KJ[Park, Kyung-Joon]Ko, YB[Ko, Young-Bae]Choi, CH[Choi, Chong-Ho]
DGIST Authors
Park, KJ[Park, Kyung-Joon]
Issue Date
2011-04
Citation
Journal of Communications and Networks, 13(2), 149-159
Type
Article
Article Type
Article
Keywords
Absolute PriorityContention Window SizeDelay ConstraintsDiagnosabilityDiagnostic FeaturesE-HealthcareHealth CareHealthcare FacilityIEEE 802.11EIEEE 802.11E Wireless Local Area Network (Wlan)Medical-Grade Quality of Service (QoS)Medical ApplicationsMonitoring ApplicationsPatient MonitoringPerformance EvaluationQoS MetricQuality ControlQuality of Service (QoS)Relative PrioritiesSimulation ResultStandardsThroughput PerformanceTraffic CategoriesWireless Healthcare SystemWireless LANWireless Local Area Networks (WLAN)
ISSN
1229-2370
Abstract
In this paper, we study the problem of how to design a medical-grade wireless local area network (WLAN) for healthcare facilities. First, unlike the IEEE 802.11e MAC, which categorizes traffic primarily by their delay constraints, we prioritize medical applications according to their medical urgency. Second, we propose a mechanism that can guarantee absolute priority to each traffic category, which is critical for medical-grade quality of service (QoS), while the conventional 802.11e MAC only provides relative priority to each traffic category. Based on absolute priority, we focus on the performance of real-time patient monitoring applications, and derive the optimal contention window size that can significantly improve the throughput performance. Finally, for proper performance evaluation from a medical viewpoint, we introduce the weighted diagnostic distortion (WDD) as a medical QoS metric to effectively measure the medical diagnosability by extracting the main diagnostic features of medical signal. Our simulation result shows that the proposed mechanism, together with medical categorization using absolute priority, can significantly improve the medical-grade QoS performance over the conventional IEEE 802.11e MAC. © 2011 KICS.
URI
http://hdl.handle.net/20.500.11750/2487
DOI
10.1109/JCN.2011.6157414
Publisher
Korea Information and Communications Society
Files:
There are no files associated with this item.
Collection:
Information and Communication EngineeringCSI(Cyber-Physical Systems Integration) Lab1. Journal Articles


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