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首页> 外文期刊>IEEE/ACM Transactions on Networking >DyMo: Dynamic Monitoring of Large-Scale LTE-Multicast Systems
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DyMo: Dynamic Monitoring of Large-Scale LTE-Multicast Systems

机译: DyMo :大型LTE多播系统的动态监控

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摘要

LTE evolved Multimedia Broadcast/Multicast Service (eMBMS) is an attractive solution for video delivery to very large groups in crowded venues. However, the deployment and management of eMBMS systems are challenging, due to the lack of real-time feedback from the user equipments (UEs). Therefore, we present the Dynamic Monitoring (DyMo) system for low-overhead feedback collection. DyMo leverages eMBMS for broadcasting stochastic group instructions to all UEs. These instructions indicate the reporting rates as a function of the observed quality of service (QoS). This simple feedback mechanism collects very limited QoS reports from the UEs. The reports are used for network optimization, thereby ensuring high QoS to the UEs. We present the design aspects of DyMo and evaluate its performance analytically and via extensive simulations. Specifically, we show that DyMo infers the optimal eMBMS settings with extremely low overhead while meeting strict QoS requirements under different UE mobility patterns and presence of network component failures. For instance, DyMo can detect the eMBMS signal-to-noise ratio experienced by the 0.1th percentile of the UEs with a root mean square error of 0.05% with only 5 to 10 reports per second regardless of the number of UEs.
机译:LTE演进的多媒体广播/多播服务(eMBMS)是一种将视频传输到拥挤场所中的大型团体的有吸引力的解决方案。但是,由于缺乏来自用户设备(UE)的实时反馈,因此eMBMS系统的部署和管理面临挑战。因此,我们提出了用于低开销反馈收集的动态监控(DyMo)系统。 DyMo利用eMBMS向所有UE广播随机组指令。这些说明指示报告速率是观察到的服务质量(QoS)的函数。这种简单的反馈机制从UE收集非常有限的QoS报告。这些报告用于网络优化,从而确保UE的高QoS。我们介绍了DyMo​​的设计方面,并通过广泛的仿真分析和评估了其性能。具体来说,我们显示DyMo以极低的开销推断出最佳的eMBMS设置,同时在不同的UE移动性模式和网络组件故障的存在下满足严格的QoS要求。例如,DyMo可以检测到0.1%的UE所经历的eMBMS信噪比,其均方根误差为0.05%,而与UE的数量无关,每秒仅报告5到10次。

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