Network modeling and jitter control for multimedia communication over broadband network

For pre-orchestrated multimedia documents, the important QoS parameters are bandwidth, jitter and reliability. A data network may employ a large number of service disciplines that provide guaranteed QoS. In this paper, we propose a network model, which we call the jitter graph, to capture the bandwidth, jitter and reliability of a large number of service disciplines. The significance of this model is that it abstracts the properties of the network, which allows the design of QoS routing protocols, resource allocation policies, and traffic regulation schemes that are independent of the specific properties of each node. Based on this model, we propose a traffic regulation scheme that reduces, and possibly eliminates, jitter introduced by any service discipline that can be abstracted by the jitter graph network model. The proposed traffic regulation scheme, together with jitter graph model, are analyzed and simulated based on an existing service discipline