Providing producer mobility support in NDN through proactive data replication

Abstract

Named Data Networking (NDN) is a novel architecture expected to overcome limitations of the current Internet. User mobility is one of the most relevant limitations to be addressed. NDN supports consumer mobility by design but fails to offer the same level of support for producer mobility. Existing approaches to extend NDN are host-centric, which conflicts with NDN principles, and provide limited support for producer mobility. This paper proposes a content-centric strategy that replicates and pushes objects proactively, and unlike previous approaches, takes full advantage of NDN routing and caching features. We compare the proposed strategy with default NDN mechanisms regarding content availability, consumer performance, and network overhead. The evaluation results indicate that our strategy can increase the hit rate of objects by at least 46% and reduce their retrieval time by over 60%, while not adding significant overhead.

T-Move: A Light-Weight Protocol for Improved QoS in Content-Centric Networks with Producer Mobility

“…While [9] gives no simulation results, [10] considers a very small network with 9 routers and just one producer and one consumer with 10 interests/s and a mobility rate of 15 m/s for evaluation. In [33], the authors propose a scheme that pushes content proactively to increase availability and evaluate it for larger topologies. However, content is pushed upon creation in any network other than the home network.…”

Caching on Named Data Network: a Survey and Future Research

“…Generally, caching techniques for mobile nodes have a basic idea for subscribing a user to a content producer [28], [47], prefetching content to other router that will handle consumer [19], [20], collaborate the data transmission mode for VANET [44], and mobile node support techniques that consider an energy [48]. In the mobile environment, the problems are NDN nodes always move, including routers, producers, and consumers [21].…”

“…Another technique is proposed by [19] to predict node mobility and provide the best prefetching node. Paper [20] explain the mechanism to support producer mobility, such as push to send the data, make some copies of data, determine the content placement, and re-announce if they move to another area. Paper [44] propose VANET's communication mode switching, Vehicle-to-vehicle (V2V) and vehicle-toinfrastructure (V2I), depending on the popularity of downloaded content.…”

Análise de Perfis de Usuários de Música e Seus Impactos no Desempenho de Políticas de Substituição de Cache

“…Em arquiteturas de Redes Centradas na Informação (do inglês, Information-Centric Networking -ICN) [Ioannou and Weber 2016], dados comportamentais dos usuários já tem sido explorados na elaboração de estratégias que visam melhorar o desempenho de tais redes, uma vez que as mesmas se baseiam num modelo de consumo/requisição centralizado no detentor do conteúdo. Na literatura recente,é possível encontrar trabalhos que propõem a identificação de padrões de comportamento de produtores, buscando minimizar efeitos do handoff [Lehmann et al 2016, Araújo et al 2018; o uso de políticas de cache de acordo com contexto e perfil dos usuários [Ribeiro et al 2018]; a escolha de localização de cache a partir das suas rotinas diárias [da Silva et al 2016]; e o encaminhamento de interesses com base na previsão do deslocamento dos produtores [Araújo et al 2018]. Apesar de tais iniciativas apresentarem contribuições em arquiteturas ICNs, as mesmas ainda exploram timidamente os perfis comportamentais dos usuários nas suas soluções.…”