A new QoS mapping for streamed MPEG video over a DiffServ domain

摘要

We present a new QoS mapping for streamed MPEG video over a DiffServ domain. in this mechanism, QoS indexes are defined based on the loss and delay requirements of each video flow. In agreement with these QoS indexes, the video packets are mapped in the classes of the AF service. The efficiency of this mechanism was evaluated by means of modeling and simulation of MPEG-4 video transmission over a DiffServ domain. The results show that the proposed QoS mapping can take advantages of the DiffServ architecture, making possible an improvement in the video quality according to the user and application needs.