Modelling TCP flows over an 802.11 wireless LAN

Conference: European Wireless 2005 - 11th European Wireless Conference 2005 - Next Generation wireless and Mobile Communications and Services
04/10/2006 - 04/13/2005 at Nicosia, Cyprus

Proceedings: European Wireless 2005

Pages: 7Language: englishTyp: PDF

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Sakurai, Taka; Hanly, Stephen (ARC Special Research Centre for Ultra-Broadband Information Networks (CUBIN), Dept. of Electrical and Electronic Engineering, The University of Melbourne, Vic 3010, Australia)

We present an analysis of the throughput of TCP flows transmitted over IEEE 802.11 wireless LAN connections, for the case when TCP flow control is restricted by the receivers’ advertised windows. Both persistent and non-persistent TCP connections are considered. We obtain an expression for the aggregate TCP throughput of multiple persistent TCP connections, and then use this result in a queueing model of non-persistent TCP connections. The theoretical models are validated with simulation. Our results show that the the total bandwidth is shared fairly between TCP flows, and that the aggregate TCP throughput is insensitive to the number of flows.