Dynamic Resource Allocation and Scheduling for Cloud-Based Virtual Content Delivery Networks

Virtualização de Serviço de Distribuição de Vídeo

“…Alguns grupos de pesquisa tem explorado o uso de algoritmos de otimização da alocação de recursos dinamicamente na expectativa de viabilizar a automatização da virtualização dos serviços de rede. Um [23] demonstra que é possível associar um algoritmo a rede de distribuição virtualizada que garanta o atendimento ao SLA (Service-Level Agreement) contratado pelo cliente de forma dinâmica. Giotis [29] também mostra resultados promissores ao utilizar uma rede de distribuição híbrida associada à SDN, com alguns nós virtualizados, ao estabelecer um mecanismo de políticas para a realocação de recursos.…”

Towards simulation and optimization of cache placement on large virtual content distribution networks

“…The increased heterogeneity of devices demanding high resolution videorelated content and services (including AR/VR), requires complex networking, increased computing resources, and greater scalability [5]. In order to tackle these demands using legacy infrastructure, resource virtualization is used by CSPs, including virtual CDNs (vCDNs) that leverage cloud computing to of-fer flexible and reliable services to meet the increasing QoS expectations [6,7].…”

Deploying a content delivery service function chain on an SDN-NFV operator infrastructure

“…being able to have a complete control over two connected hosts, we envision a solution for a collaboration between those two actors around a Network Function Virtualization (NFV) architecture [3]. We propose a solution where ISPs can manage a distributed NFV infrastructure where CDNs will run their caching software as vNFs through a virtual CDN (vCDN) Network Function, as exposed in [4] and [5]. It is a win-win approach since CDNs can expand their coverage dynamically without buying new servers and ISPs can increase their revenue by billing them while reducing inter-Autonomous Systems (AS) traffic.…”