The demand for mobile multimedia streaming services has been steadily growing in recent years. Mobile multimedia broadcasting addresses the shortage of radio resources but introduces a network error recovery problem. Retransmitting multimedia segments that are not correctly broadcast can cause service disruptions and increased service latency, affecting the quality of experience perceived by end users. With the advent of networking paradigms based on virtualization technologies, mobile networks have been enabled with more flexibility and agility to deploy innovative services that improve the utilization of available network resources. This paper discusses how mobile multimedia broadcast services can be designed to prevent service degradation by using the computing capabilities provided by multiaccess edge computing (MEC) platforms in the context of a 5G network architecture. An experimental platform has been developed to evaluate the feasibility of a MEC application to provide adaptive error recovery for multimedia broadcast services. The results of the experiments carried out show that the proposal provides a flexible mechanism that can be deployed at the network edge to lower the impact of transmission errors on latency and service disruptions.

翻译：近年来，移动多媒体流媒体服务的需求持续增长。移动多媒体广播解决了无线资源短缺的问题，但引入了网络错误恢复的挑战。未正确广播的多媒体分段的重新传输可能导致服务中断和延迟增加，影响终端用户感知的服务质量。随着基于虚拟化技术的网络范式的出现，移动网络变得更加灵活和敏捷，能够部署创新服务以提高可用网络资源的利用率。本文讨论了如何在5G网络架构背景下，利用多接入边缘计算（MEC）平台提供的计算能力，设计移动多媒体广播服务以防止服务降级。开发了一个实验平台，用于评估MEC应用为多媒体广播服务提供自适应错误恢复的可行性。实验结果表明，该方案提供了一种灵活的机制，可部署在网络边缘，以降低传输错误对延迟和服务中断的影响。