Adaptive Overlay Routing of long-lived flows in Ambient Networks

One key design requirement for Ambient Networks is the provisioning of the serviceaware transport overlays. In order to fulfil this requirement, the overlay routing needs to adapt to changes in service specific QoS or specific network conditions and context. In this paper, it discusses a novel solution that the overlay routing’s stability and performance can be effectively improved by rerouting long-lived flows in the alternative (or new discovered) path while shortlived flows stay in the old path. In addition, this paper proposes an adaptive sensor design to detect the long-lived flow based on the feedback of the available bandwidth.