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  Network Selection Algorithm for Heterogeneous Wireless Networks: from Design to Implementation
 
 
Titel: Network Selection Algorithm for Heterogeneous Wireless Networks: from Design to Implementation
Auteur: Alexandros Kaloxylos
Ioannis Modeas
Fotos Georgiadis
Nikos Passas
Verschenen in: Network protocols and algorithms
Paginering: Jaargang 1 (2009) nr. 2 pagina's 27-47
Jaar: 2009
Inhoud: In the recent years, several transport protocols have been proposed for very high bandwidth-delay product networks. However, little is known about the performance of these new mechanisms as well as the interaction with other elements of the network (such as the RED queue management). On the other hand, the control-theoretic approach has proved to be a very useful tool in order to get analytical insight into the performance of congestion control algorithms. In this paper, a control-theoretic research framework is designed and implemented for analyzing high speed transport protocol proposals in network environments with RED active queue management. As a case study, a comprehensive control-theoretic analysis of a promising proposal, namely the HighSpeed TCP is provided. The main contributions of this paper are the following. First, we provide a fluid-flow model for HighSpeed TCP/RED networks. Second, a comprehensive and systematic implementation methodology is described in detail, and a Simulink-based framework is designed for analyzing fluid-based models. Third, we derive a stability condition for HighSpeed TCP/RED networks. The flow-level results are validated by packet-level simulations conducted in Ns-2. Finally, an extension of the framework is presented that makes it capable of describing the interaction of different transport protocols.
Uitgever: Macrothink Institute (provided by DOAJ)
Bronbestand: Elektronische Wetenschappelijke Tijdschriften
 
 

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