Congestion and Error Control in Overlay Networks

In recent years, Internet has known an unprecedented growth, which, in turn, has lead to an increased demand for real-time and multimedia applications that have high Quality-of-Service (QoS) demands. This evolution lead to di±cult challenges for the Internet Service Providers (ISPs) to provide good QoS for their clients as well as for the ability to provide di®erentiated service subscriptions for those clients who are willing to pay more for value added services.