Performance Evaluation of Bandwidth Adaptation over DVB Satellite Channels

This paper shows a detailed performance evaluation of the bandwidth allocation algorithm presented in [1] by the same research group and briefly reminded here. Telecommunications networks are composed of functional layers acting in cascade. The mentioned algorithm adapts the bandwidth to be allocated to a buffer which conveys heterogeneous traffic in a layer-in-cascade functional model, is based only on measures and does not use closed-form expressions, a-priori information about traffic statistical properties, and assumptions about buffer dimension. It is called RCBC (Reference Chaser Bandwidth Control) in [1]. The performance evaluation presented here is aimed at getting a general validation by testing RCBC over multiple DVB-based satellite scenarios and by analyzing the robustness of the algorithm against parameter variations. The performance evaluation is carried out through multiple performance metrics and, in consequence, the results are interpreted through MADM (Multi Attribute Decisions Making) theory, which is appropriate to take decisions in presence of multiple performance indicators.