Towards Energy Saving Wireless Body Sensor Networks in Health Care Systems

2010 IEEE International Conference on Communications Workshops Pub Date : 2010-05-23 DOI:10.1109/ICCW.2010.5503912

B. Otal, L. Alonso, C. Verikoukis

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引用次数: 21

Abstract

The fact that the IEEE 802.15.4 MAC does not fully satisfy the strict wireless body sensor network (BSN) requirements in healthcare systems highlights the need for the design of new scalable MAC solutions, which guarantee low-power consumption to all specific sorts of body sensors and traffic loads. While taking the challenging healthcare requirements into account, this article aims at the study of energy consumption in BSN scenarios. For that purpose, the IEEE 802.15.4 MAC limitations are first examined and other potential MAC layer alternatives further explored. Our intent is to introduce energy-aware radio activation polices into a high-performance distributed queuing medium access control (DQ MAC) protocol and evaluate its energy-saving achievements, as a function of the network load. To do so, a fundamental energy-efficiency theoretical analysis for DQ MAC protocols is hereby for the first time provided. By means of computer simulations, its performance is validated using IEEE 802.15.4 MAC system parameters. The achieved outcome shows that the proposed DQ MAC scheme outperforms IEEE 802.15.4 MAC energy efficiency in all possible BSN scenarios.

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迈向节能无线身体传感器网络在医疗保健系统

事实上，IEEE 802.15.4 MAC不能完全满足医疗保健系统中严格的无线身体传感器网络(BSN)要求，这突出了设计新的可扩展MAC解决方案的必要性，这些解决方案必须保证所有特定类型的身体传感器和流量负载的低功耗。在考虑具有挑战性的医疗保健需求的同时，本文旨在研究BSN场景中的能源消耗。为此，首先检查IEEE 802.15.4 MAC限制，并进一步探索其他潜在的MAC层替代方案。我们的目的是在高性能分布式排队介质访问控制(DQ MAC)协议中引入能量感知无线电激活策略，并评估其节能效果，作为网络负载的函数。为此，本文首次对DQ MAC协议进行了基本的能效理论分析。通过计算机仿真，采用IEEE 802.15.4 MAC系统参数对其性能进行了验证。实验结果表明，在所有可能的BSN场景下，DQ MAC方案的能效都优于IEEE 802.15.4 MAC方案。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2010 IEEE International Conference on Communications Workshops

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