A Gossip-based optimistic replication for efficient delay-sensitive streaming using an interactive middleware support system

摘要

While sharing resources the efficiency is substantially degraded as a resultof the scarceness of availability of the requested resources in a multiclientsupport manner. These resources are often aggravated by many factors like thetemporal constraints for availability or node flooding by the requestedreplicated file chunks. Thus replicated file chunks should be efficientlydisseminated in order to enable resource availability on-demand by the mobileusers. This work considers a cross layered middleware support system forefficient delay-sensitive streaming by using each device's connectivity andsocial interactions in a cross layered manner. The collaborative streaming isachieved through the epidemically replicated file chunk policy which uses atransition-based approach of a chained model of an infectious disease withsusceptible, infected, recovered and death states. The Gossip-based statefulmodel enforces the mobile nodes whether to host a file chunk or not or, when nolonger a chunk is needed, to purge it. The proposed model is thoroughlyevaluated through experimental simulation taking measures for the effectivethroughput Eff as a function of the packet loss parameter in contrast with theeffectiveness of the replication Gossip-based policy.