Modeling the Behavior of a DVB-RCS Satellite Network: an Empirical Validation
Davide Adami, Stefano Giordano, Michele Pagano, Raffaello Secchi · 2005
Since satellite networks provide a valuable bandwidth access to vast regions at relatively low costs, recently the interest in Internet access through satellite links has considerably increased. At the same time, the TCP/IP protocols suite is widely used in all the communication environments, encompassing the most important network applications. Thus, the actual exploitation of satellite technology into the global Internet is possible only by moulding satellite access control scheme to the TCP/IP network features. Starting from a set of measurements carried out in a DVB-RCS network, in this paper we propose an analytical model of the RBDC medium access control scheme. The model highlights how bandwidth-on-demand allocation mechanisms may lead to large packet delivery delays when sudden variations in the incoming traffic rate, typical of multimedia traffic flows, occur. Due to the effectiveness of the model, it is possible to use it for improving resources allocation strategies. 1