SRPT applied to bandwidth-sharing networks |
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Authors: | Samuli Aalto and Urtzi Ayesta |
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Institution: | (1) TKK Helsinki University of Technology, Networking Laboratory,, P.O. Box 3000, 02015 Helsinki, Finland;(2) LAAS-CNRS, 7 Avenue du Colonel Roche, 31 077 Toulouse Cedex 4, France |
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Abstract: | We consider bandwidth-sharing networks, and show how the SRPT (Shortest Remaining Processing Time) discipline can be used
in order to improve the delay performance of the system. Our main idea is not to use SRPT globally between the traffic classes,
which has been shown to induce instability, but rather deploy SRPT only locally within each traffic class. We show that with
this approach, the performance of any stable bandwidth allocation policy can be improved. Importantly, our result is valid
for any network topology and any flow size distribution. A numerical study is included to illustrate the results. |
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Keywords: | Bandwidth-sharing network Bandwidth allocation Scheduling SRPT |
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