1 Michele Pagano – HET-NET 2005 - Ilkely, July - 2005 Modeling the Behavior of a DVB- RCS Satellite Network: an Empirical Validation Davide Adami, Stefano Giordano, Michele Pagano , Raffaello Secchi Dipartimento di Ingegneria dell’Informazione Universita’ di Pisa
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Modeling the Behavior of a DVB- RCS Satellite Network: an Empirical Validation
Modeling the Behavior of a DVB- RCS Satellite Network: an Empirical Validation Davide Adami, Stefano Giordano, Michele Pagano , Raffaello Secchi Dipartimento di Ingegneria dell’Informazione Universita’ di Pisa. Outline. Motivation Introduction to DVB-RCS architecture - PowerPoint PPT Presentation
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• Satellite Networks provide access to vast regions at a low cost:– The satellite link bandwidth is a scarce resource and its
use should optimized – The DVB-RCS is designed to support user interactivity
from satellite link and integrate satellite networks into the global Internet infrastructure
• An analytical framework is required:– To evaluate the behavior of BoD algorithms at IP layer– To evaluate the impact of satellite MAC on TCP/IP traffic– To the project of new satellite access scheme
The requested bandwidth is the smoothing of amount of traffic seen during k-th resource allocation
BoD controller
Traffic Terminal
BoD Processing
system response time (L frames)
safe frame period
k-th resource allocation period
r(k) a(k)
The BoD Controller assign bandwidth as long as is lower than the ceiling threshold RBDCmax and at least the Committed Information Rate (CIR) max,,maxmin RBDCCIRLkrka