Performance analysis of dynamic adaptive video streaming over mobile content delivery networks

Abstract

Mobile Content Delivery Networks (MCDNs) are designed to effectively support the delivery of continuous and discrete media to mobile consumers over cellular networks. Enabling large scale content distribution at a reasonable cost and without overloading the mobile core network is a crucial design goal for network operators. Nowadays, a key task for network operators is the development of efficient MCDNs due to the day-by-day video traffic increase in the network. In this paper, a novel concept of MCDN is proposed with the target of flexibly adapting the video caching and transport in the cellular network to the mobility of the users. By means of simulation we show that there exists a video chunk length which provides the best tradeoff between the traffic volume generated in the network and the size of the cache in the CDN nodes. New challenges are discussed and practical considerations for wide-scale deployments in next generation cellular networks are discussed

On Multi-Access Edge Computing: A Survey of the Emerging 5G Network Edge Cloud Architecture and Orchestration

“…The suggested joint optimization can enhance the allocation and selection of VNFs considering the application type by taking into account additionally MEC related information, e.g., network conditions and big data. For mobile users, the common orchestrator can select the new attachment point considering the application type as elaborated in [164], transferring selected user related application content to the new location [165], while also having the capability to perform a VNF re-location, e.g., S-GW re-location in LTE. MEC can also provide feedback to the transport layer, e.g., making the TCP more radio aware [166], in order to optimize the network resource management.…”