A new dynamic flow allocation scheme to guarantee quality of
service and more stabilized performance is proposed, replacing an Ethernet
passive optical network. This new scheme improves a prioritybased
access network, converting it to a flow-based access network with
a new access mechanism and scheduling algorithm. With this new
scheme, a network service provider can provide upper limits of transmission
delays by the flow. The modeling and simulation results with mathematical
analyses obtained by this scheme are also provided.