Fair resource allocation in networks with coexisting unicast and multirate multicast flows
Xie Jian-ying · Systems engineering and electronics · 2004
Considering the heterogeneity of multicast receivers unicast and multicast missions are brought to unified convex program model research with the objective of maximizing network user utility and by applying a penalty function approach a heuristic rate control algorithm is derived. In the distributed implementative of the algorithm in IP networks. The routers employ RED algorithm to mark the text, the congestion information is fed back the end-users extract the congestion information to calcalate optimal rate and renew if correspondingly. With choice of apporpriate algorithm parameters and effect functions multicast and unicast sessions can share the network resources in the proportional fair manner. Simulation results verify the effectiveness of the algorithm. The effect of different bandwidth discrelization density upon resource allocation fairness in a layered implementation of multirate multicast.