Due to the good property for the EDF scheduling to minimize the maximum lateness of packets , the EDF takes advantages over the PGPS to schedule the real-time traffic, which might be carried by the UDP or TCP transport. It is well known that the traditional IP router with the implementation of FCFS-DropTail scheme does not do a fair resource allocation among TCP and UDP flows. In this case study, the EDF scheme is proposed to schedule the real time traffic in order to get the optimal delay performance whereas the active buffer management CHOKe works together with the above EDF scheduling to improve the fair resource allocation between UDP-based and TCP-based real-time communications under the self-similar traffic.
(the results will be added afterwards.)