A New Bandwidth Allocation Strategy in GEO Satellite Networks and Pricing the Differentiated Services

The approach presented in this paper aims at establishing a bandwidth allocation scheme for use in Geostationary Earth Orbit (GEO) satellite networks. As various multimedia applications necessitate large amounts of capacity, an efficient bandwidth management algorithm comes into prominence in order to provide high quality of service (QoS) to users. The first stage of the algorithm involves determining the portion of bandwidth that should be offered to a Satellite Gateway (SG), while the second stage consists of sharing this allocated bandwidth among different traffic flow types. At this point, the strategic pricing concept which means building a balance between the customer´s desires and the network operator´s profits emerges. The proposed approach has the objective to solve simultaneously these two consecutive allocation problems and moreover to propose their pricing scheme. Analytical and simulation results demonstrate the effectiveness of the suggested approach in terms of efficient bandwidth usage.