Search results for: G.J. Hoekstra
Performance Evaluation > 2013 > 70 > 10 > 889-899
Performance Evaluation > 2012 > 69 > 1 > 41-52
Computer Communications > 2010 > 33 > 16 > 1972-1981
Computer Communications > 2009 > 32 > 6 > 1022-1033
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Multi-path communication solutions provide a promising means to improve the network performance in areas covered by multiple wireless access networks. Today, little is known about how to effectively exploit this potential. We study a model where flows are transferred over multiple parallel networks, each of which is modeled as a processor sharing node. The goal is to minimize the expected transfer...
chapter
The concurrent use of networks provides a powerful means to boost performance in areas covered by multiple networks where only limited bandwidth is available. However, despite its enormous potential for performance improvement only little is known about how to effectively exploit the potential for performance improvement in practical deployments. This raises the need for traffic-splitting-and-reassembly...
chapter
Today, a wide range of networks exist that provide users with data services using TCP. For performance engineering of such networks there is a need for simple but accurate models to predict the performance under anticipated load conditions. This is a challenging task, because the combined packet-level dynamics of the network-protocol stack are highly complicated. First, we explain how the packet-level...
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Contemporary wireless networks are based on a wide range of different technologies providing overlapping coverage. This offers users a seamless integration of connectivity by allowing to switch between networks, and opens up a promising area for boosting the performance of wireless networks. Motivated by this, we consider a networking environment in which users are able to select between the available...
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Today, a wide range of 802.11-based Wireless LANs (WLANs) have become dominant to provide wireless Internet access for file transfers. For engineering purposes, there is a need for very simple, explicit, yet accurate, models that predict the performance of WLANs under anticipated load conditions. In this context, several detailed packet-level models have been proposed, based on fixed-point equations...
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This paper shows that throughput parameter “bits/s” does not provide accurate insight in load conditions and/or traffic demands in Wireless LANs (WLANs). A multi-service traffic profile that does provide this insight is therefore defined. The multi-service traffic profile is natural to define network resource demands for real-time applications. Simulation results are used to show how to set the traffic...
chapter
We study the performance of FTP file transfers over a WLAN and propose a new analytic model that translates the highly complex dynamics of the FTP/TCP/IP/MAC-stack, and their interactions, into a single parameter, called the effective load, and use this to describe the flow-level behavior of FTP-based file transfers over WLANs without admission control as an M/G/l Processor-Sharing (PS)-model. This...
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