A Priority-Weighted Round Robin scheduling strategy for a WBAN based healthcare monitoring system
A Priority-Weighted Round Robin scheduling strategy for a WBAN based healthcare monitoring system
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基于 WBAN 的医疗保健监控系统的优先级加权循环调度策略
DOI：
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发表时间：
2016
期刊：
影响因子：
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通讯作者：
L. Chaari
中科院分区：
文献类型：
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作者：
A. Manirabona;S. Boudjit;L. Chaari
医疗保健监测系统(HMS)正在成为门诊和卧床不起患者的新兴和革命性技术。他们还将为老年人提供家居援助，同时提供优质和低成本的服务。由于无线体域网络(WBAN)被设计为监护系统的一部分，由于医疗保健应用是时间敏感和丢失敏感的，因此基于WBAN的HMS可以实现服务质量(Qos)工具来保证某些生理数据需求，例如数据丢失和延迟。提出了一种新的基于WBAN的HMS调度策略PWRR(优先级加权轮询)，以缓解HMS在紧急和医疗流量中的延迟。作为优先级调度和加权轮询的组合的PWRR利用WBAN内的生理数据的用户优先级来确定如何调度它们并将其发送出WBAN。分析和仿真结果表明，与FIFO(先进先出)策略相比，PWRR策略在协调器处的紧急和医疗数据流的延迟方面有很大的改善。
Healthcare monitoring systems (HMS) are becoming emerging and revolutionary technology for ambulatory and bedridden patients. They are also expected to offer home assistance to elderly persons while providing qualitative and low cost services. As Wireless Body Area Networks (WBANs) are designed to be part of monitoring systems, a WBAN based HMS might implement Quality of service (QoS) tools to guarantee some physiological data requirements such as data loss and delay as healthcare applications are time-sensitive and loss-sensitive. This paper focuses on mitigation of delay at the coordinator of a WBAN based HMS for emergency and medical traffic flows by proposing a new scheduling strategy named PWRR (Priority-Weighted Round Robin). The PWRR as a combination of a priority scheduling and a weighted round robin utilizes the user priorities of physiological data within the WBAN to determine how to schedule and send them off the WBAN. Analytical and simulation results show that PWRR strategy offers much improvements in terms of delay of emergency and medical data flows at the coordinator compared to the FIFO (first in fist out) strategy.