A. A. Marsan

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In this paper we extend a previously proposed approach for the performance analysis of short-lived TCP connections, so as to allow the investigation of multiple-bottleneck networks loaded with the traffic resulting from a mixture of TCP-Tahoe and TCP-NewReno connections. The modeling approach is based on the separate development of three submodels, the(More)
This paper discusses the application of the Generalized Stochastic Petri Net (GSPN) modeling paradigm to the performance analysis of Asynchronous Transfer Mode (ATM) networks. GSPNs are rst shown to be an adequate tool for the development of models of ATM networks, provided that only one timed transition is used, together with many immediate transitions.(More)
Bicuspid aortic valve (BAV) is three times more prevalent among men than women. However, sex differences in patients with BAV have not been extensively studied. A recent study of patients with BAV who underwent surgical aortic valve replacement showed that women presented more frequently with aortic stenosis and smaller maximal aortic diameter compared with(More)
The performance of le transfer applications running over B-ISDN is investigated, taking into account both the impact of the ATM layer protocols and the features of the adopted transport protocol. Two transport protocols in particular are considered: TCP and XTP. The two transport protocols have quite diierent characteristics: while TCP is a window-based(More)
This paper describes a connection admission control (CAC) algorithm for ATM networks supporting diierent Quality of Service (QoS) classes, and illustrates its eeectiveness with simulationresults considering both the call-level and the cell-level dynamics. The CAC algorithm groups connection requests in three diierent QoS classes: i) Class 1: with stringent(More)
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