Abstract

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Time-aware Utility-based QoS Optimisation

Calin Curescu Simin Nadjm-Tehrani

To appear at Euromicro Conference on Real-Time Systems (ECRTS03), Porto, Portugal, 2-4 July 2003


Abstract

This paper presents a time-aware admission control and resource allocation scheme in the context of a future generation mobile network. The quality levels (and their respective utility) of the different connections are specified using discrete resource-utility (R-U) functions. The scheme uses these R-U functions for allocating and reallocating bandwidth to connections, aiming to maximise the accumulated utility of the system. However, different applications react differently to resource re-allocations. Therefore at each allocation timepoint we take into account the following factors: the age of the connection, sensitiveness to dropping and sensitiveness to reallocation frequency. Finally, we show the superior performance of our approach compared to a recent adaptive bandwidth allocation scheme.


10 Mar 2003 at 21:02:27