MobiWeb: Enabling adaptive continuous media applications over 3G wireless links

MobiWeb is a proxy-based network architecture designed to enhance the perfo rmance of adaptive real-time streams over 3G wireless links. MobiWeb includ es a priority scheme that preserves media smoothness despite short-term flu ctuations of the link, as well as an adaptation mechanism applied to stream s responding to long-term link changes and handoffs. A set of timers permit s the rapid exploration of the link, increasing the utilization of resource s when they are abundant, while forcing enhanced streams to back off to mor e moderate resource usage when resources are scarce. MobiWeb uses admission control for real-time traffic in order to provide a base level of quality, while remaining transparent to unaware best-effort traffic. This article v alidates the enhanced performance of adaptive real-time streams when MobiWe b is used through the evaluation of several scenarios simulated on NS - the Network Simulator tool.