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Analysis and Tools for Improved Management of Connectionless and Connection-Oriented BLE Devices Coexistence

机译：用于改进无连接和面向连接的BLE设备共存管理的分析和工具

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With the introduction of low-power wireless technologies, like Bluetooth Low Energy (BLE), new applications are approaching the home automation, healthcare, fitness, automotive and consumer electronics markets. BLE devices are designed to maximize the battery life, i.e., to run for long time on a single coin-cell battery. In typical application scenarios of home automation and Ambient Assisted Living (AAL), the sensors that monitor relatively unpredictable and rare events should coexist with other sensors that continuously communicate health or environmental parameter measurements. The former usually work in connectionless mode, acting as advertisers, while the latter need a persistent connection, acting as slave nodes. The coexistence of connectionless and connection-oriented networks, that share the same central node, can be required to reduce the number of handling devices, thus keeping the network complexity low and limiting the packet’s traffic congestion. In this paper, the medium access management, operated by the central node, has been modeled, focusing on the scheduling procedure in both connectionless and connection-oriented communication. The models have been merged to provide a tool supporting the configuration design of BLE devices, during the network design phase that precedes the real implementation. The results highlight the suitability of the proposed tool: the ability to set the device parameters to allow us to keep a practical discovery latency for event-driven sensors and avoid undesired overlaps between scheduled scanning and connection phases due to bad management performed by the central node.
机译：随着低功耗无线技术（如蓝牙低功耗（BLE））的引入，新的应用正在进入家庭自动化，医疗保健，健身，汽车和消费电子市场。 BLE设备旨在最大程度地延长电池寿命，即在单个币形电池上长时间运行。在家庭自动化和环境辅助生活（AAL）的典型应用场景中，监视相对不可预测和罕见事件的传感器应与其他连续传达健康或环境参数测量值的传感器共存。前者通常以无连接模式工作，充当广告商，而后者则需要持久连接，充当从节点。要求共享同一中央节点的无连接和面向连接的网络共存，以减少处理设备的数量，从而使网络复杂度降低，并限制数据包的流量拥塞。在本文中，已经对由中央节点操作的媒体访问管理进行了建模，重点是无连接和面向连接的通信中的调度过程。在实际实施之前的网络设计阶段，已合并模型以提供支持BLE设备配置设计的工具。结果突出表明了所建议工具的适用性：设置设备参数的能力使我们能够为事件驱动的传感器保留实际的发现等待时间，并避免由于中央节点执行的不良管理而导致计划的扫描和连接阶段之间出现不必要的重叠。

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