Kuroda Masahiro, Qiu Shuye, Tochikubo Osamu
National Institute of Information and Communications Technology, Koganei, Tokyo, Japan.
Annu Int Conf IEEE Eng Med Biol Soc. 2009;2009:2442-5. doi: 10.1109/IEMBS.2009.5334428.
Many healthcare/medical services have started using personal area networks, such as Bluetooth and ZigBee; these networks consist of various types of vital sensors. These works focus on generalized functions for sensor networks that expect enough battery capacity and low-power CPU/RF (Radio Frequency) modules, but less attention to easy-to-use privacy protection. In this paper, we propose a commercially-deployable secure body area network (S-BAN) with reduced computational burden on a real sensor that has limited RAM/ROM sizes and CPU/RF power consumption under a light-weight battery. Our proposed S-BAN provides vital data ordering among sensors that are involved in an S-BAN and also provides low-power networking with zero-administration security by automatic private key generation. We design and implement the power-efficient media access control (MAC) with resource-constraint security in sensors. Then, we evaluate the power efficiency of the S-BAN consisting of small sensors, such as an accessory type ECG and ring-type SpO2. The evaluation of power efficiency of the S-BAN using real sensors convinces us in deploying S-BAN and will also help us in providing feedbacks to the IEEE802.15.6 MAC, which will be the standard for BANs.
许多医疗保健/医疗服务已开始使用个人区域网络，如蓝牙和ZigBee；这些网络由各种类型的生命传感器组成。这些工作侧重于传感器网络的通用功能，这类网络需要足够的电池容量和低功耗CPU/射频（RF）模块，但对易于使用的隐私保护关注较少。在本文中，我们提出了一种可商业部署的安全人体区域网络（S-BAN），该网络在轻量级电池供电的情况下，可减轻实际传感器的计算负担，这些传感器的随机存取存储器/只读存储器（RAM/ROM）大小有限，且CPU/射频功耗较低。我们提出的S-BAN可在参与S-BAN的传感器之间对重要数据进行排序，还可通过自动生成私钥实现零管理安全的低功耗联网。我们在传感器中设计并实现了具有资源约束安全性的高能效媒体访问控制（MAC）。然后，我们评估了由小型传感器组成的S-BAN的能效，如附件型心电图（ECG）和指环型血氧饱和度（SpO2）传感器。使用实际传感器对S-BAN的能效进行评估，让我们相信可以部署S-BAN，也将有助于我们向IEEE802.15.6 MAC提供反馈，该标准将成为人体区域网络（BAN）的标准。
