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always active, we can conclude that, practically, all the gap between IBA and heuristic algorithms is due to the bandwidth allocation granularity for every network load value. On the other hand, in the single-bottleneck scenario, the number of sources that share the bottleneck link is more consistent than in the other network scenarios. Therefore, the impact of traffic prediction is not anymore negligible. This can be observed in Figures 8.1(b) and 8.1(c), where the gap between IBA and the heuristic algorithms is present for all offered loads. Finally, we note that, also in this scenario, the performance of the proposed dynamic bandwidth allocation algorithms (in particular, OBA) well approaches that of IBA, espe- cially for high network loads. 78
Total Accepted Load (Mb/s) 7 6.5 6 5.5 5 4.5 4 3.5 3 2.5 Static Provisioning SDBA IDBA OBA IBA Sources Destinations 2 Mb/s 10 Mb/s 6 Mb/s 1 2 2 4 5 6 7 8 9 Average Offered Load (Mb/s) (b) (a) Network Extra−Revenue 2 1.5 1 0.5 Static Provisioning SDBA IDBA OBA IBA 0 4 5 6 7 8 9 Average Offered Load (Mb/s) Figure 8.1: Performance upper bound for all the proposed bandwidth allocation algorithms, network topology with a single bottleneck (a). Average total accepted load (b) and network extra-revenue (c) versus the average load offered to the network. 79 (c)
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Thèse de Doctorat de l’universit
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To my family.
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Abstract Efficient dynamic resource
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Acknowledgements I would like to th
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4.2 Connections Classification . .
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Résumé delaThèse 1. La probléma
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supérieure sur les performances qu
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compte les fonctions d’utilité d
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(Policy Decision Point), d’un ens
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ligne pour individualiser la bande
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6. Nous proposons trois algorithmes
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appelons débit de crête. Six sour
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6. Conclusion générale et Perspec
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Chapter 1 Introduction The Internet
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upper bounds to the performance ach
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Chapter 2 Dynamic Bandwidth Allocat
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Utility Function Types In a multi-a
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comes smaller than the application
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Page 43: Shenker in [10] states that the net
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Page 102 and 103: [26] P. Reichl, S. Leinen, and B. S
Page 105 and 106: Appendix A Algorithm Implementation
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