低功耗蓝牙5.0邻居发现协议时延模型研究

Latency model of neighbor discovery based on Bluetooth low energy 5.0

针对低功耗蓝牙网络邻居发现时延难以评估的问题,面向蓝牙5.0标准提出一种基于中国剩余定理的低功耗蓝牙邻居发现时延分析模型,建立邻居发现过程中广播间隔、扫描间隔以及扫描窗口参数配置与发现时延大小的理论关系,验证了不同参数配置条件对邻居发现时延大小的影响。实验结果表明,所提出的模型能够有效预测参数配置影响下的时延峰值,为不同的应用场景提供参数配置验证与指导。

For Bluetooth low energy neighbor discovery protocol,it was usually difficult to assess the discovery latency performance.A latency performance model of neighbor discovery based on Chinese remainder theorem for Bluetooth 5.0 standard was proposed.A mathematical relationship between the discovery latency and key parameters was put forward,including advertising interval,scan interval and scan window.The effect of different parameter configurations on the neighbor discovery latency was verified.Experimental results show that the model can effectively predict the delay peak under the influence of parameter configuration,and provide parameter configuration verification and guidance for different application scenarios.