Live Streaming Synchronization Using Event-Triggered Consensus Control

IF 4 3区计算机科学 Q2 AUTOMATION & CONTROL SYSTEMS

IEEE Transactions on Control of Network Systems Pub Date : 2025-01-03 DOI:10.1109/TCNS.2025.3525769

Gioacchino Manfredi;Vito Andrea Racanelli;Luca De Cicco;Saverio Mascolo

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引用次数: 0

Abstract

The advent of social media applications and mobile devices has allowed users to experience live streaming events (e.g., a football match) together, even if they are not in the same physical place. However, this service brings along the issue of ensuring a synchronized video playback among geographically distributed users. Users leave comments and reactions to an online live event on social networks. As a consequence, an unsynchronized video playback can be easily noticed and be detrimental to users' feelings of togetherness. In this work, we propose a distributed control approach to achieve synchronization among users. In particular, the well-known consensus problem of first-order integrators with saturated inputs is employed to design a distributed playback synchronization framework. Furthermore, we propose a leader–follower approach to ensure a controlled synchronization among users in order to obtain the least possible delay with respect to the video content provider. Finally, an event-triggered control is introduced as an enhancement to the previously developed control with the aim of reducing the information exchanged among users. Simulations on different network topologies confirm that the proposed approach is effective at enforcing asymptotic synchronization.

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使用事件触发共识控制的实时流同步

社交媒体应用程序和移动设备的出现使得用户可以一起体验直播事件（例如，足球比赛），即使他们不在同一个物理位置。然而，这项服务带来了一个问题，即确保在地理分布的用户之间同步播放视频。用户在社交网络上对在线直播事件发表评论和反应。因此，不同步的视频播放很容易被注意到，并且会损害用户的团聚感。在这项工作中，我们提出了一种分布式控制方法来实现用户之间的同步。特别是利用饱和输入一阶积分器的一致性问题，设计了分布式回放同步框架。此外，我们提出了一种领导者-追随者方法来确保用户之间的受控同步，以获得相对于视频内容提供商的最小延迟。最后，引入事件触发控件作为对先前开发的控件的增强，目的是减少用户之间的信息交换。在不同网络拓扑上的仿真验证了该方法在实现渐近同步方面的有效性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

IEEE Transactions on Control of Network Systems Mathematics-Control and Optimization

CiteScore

7.80

自引率

7.10%

发文量

169

期刊介绍： The IEEE Transactions on Control of Network Systems is committed to the timely publication of high-impact papers at the intersection of control systems and network science. In particular, the journal addresses research on the analysis, design and implementation of networked control systems, as well as control over networks. Relevant work includes the full spectrum from basic research on control systems to the design of engineering solutions for automatic control of, and over, networks. The topics covered by this journal include: Coordinated control and estimation over networks, Control and computation over sensor networks, Control under communication constraints, Control and performance analysis issues that arise in the dynamics of networks used in application areas such as communications, computers, transportation, manufacturing, Web ranking and aggregation, social networks, biology, power systems, economics, Synchronization of activities across a controlled network, Stability analysis of controlled networks, Analysis of networks as hybrid dynamical systems.