Service specific overlay composition and reconfiguration

This paper presents a Hybrid Service Overlay Network (H-SON) for composing Service Specific Overlay Networks (SSON) in mobile environments. The overlay topology is organized into dynamically-adaptable hierarchical Chord rings reflecting node mobility and service quality transformation. Moreover, our loss-based utility function is used to predict the client's QoE. Node resources can thus be automatically and dynamically redistributed and established SSONs can be reconfigured before quality levels deteriorate below acceptable levels. The proposed H-SON can accelerate the composition process by limiting service searches into bounded areas and can limit query broadcasts.