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首页> 外文会议>IEEE International symposium on Personal, Indoor, and Mobile Radio Communications >A channel access scheme for Bluetooth low energy to support delay-sensitive applications
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A channel access scheme for Bluetooth low energy to support delay-sensitive applications

机译：用于低功耗蓝牙的信道访问方案，以支持对延迟敏感的应用

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Bluetooth Low Energy (BLE) is one of the promising technologies to enable Internet of Things. Many potential BLE applications are delay-sensitive which demand a fast data delivery. However, since BLE coexist with other technologies such as WiFi, ZigBee, microwave, the BLE may experience severe interference. The interference can cause the BLE connection event to be unexpectedly closed which forces the device to enter sleep mode even though there is more data to be sent. This negatively affects the performance of the BLE in terms of transmission delay which makes the BLE not suitable for delay-sensitive applications. To address this issue, we propose an extension of channel access scheme of the BLE in connection state. The proposed scheme is based on the listen-before-talk mechanism where the device should sense the channel before using it. By using Markov analysis, several performance measures are derived. Through numerical result, we show that the proposed channel access scheme can reduce the average transmission delay.
机译：低功耗蓝牙（BLE）是启用物联网的有前途的技术之一。许多潜在的BLE应用对延迟敏感，因此需要快速的数据传输。但是，由于BLE与WiFi，ZigBee，微波等其他技术共存，因此BLE可能会受到严重干扰。干扰可能导致BLE连接事件意外关闭，即使有更多数据要发送，也会迫使设备进入睡眠模式。在传输延迟方面，这会对BLE的性能产生负面影响，这使得BLE不适合于对延迟敏感的应用。为了解决这个问题，我们提出了在连接状态下BLE的信道访问方案的扩展。所提出的方案基于先听后听机制，在该机制中设备应在使用信道之前先对其进行感知。通过使用马尔可夫分析，得出了几种性能指标。通过数值结果表明，所提出的信道接入方案可以减少平均传输时延。

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