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Modeling Finite Buffer Effects on TCP Traffic over an IEEE 802.11 Infrastructure WLAN

Bhardwaj, Onkar and Sharma, GVV and Panda, Manoj K and Kumar, Anurag (2009) Modeling Finite Buffer Effects on TCP Traffic over an IEEE 802.11 Infrastructure WLAN. In: 1st International Conference on Communication Systems and Networks, Jan 05-10, 2009, Bangalore, India, pp. 306-315.

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Abstract

The network scenario is that of an infrastructure IEEE 802.11 WLAN with a single AP with which several stations (STAs) are associated. The AP has a finite size buffer for storing packets. In this scenario, we consider TCP controlled upload and download file transfers between the STAs and a server on the wireline LAN (e.g., 100 Mbps Ethernet) to which the AP is connected. In such a situation, it is known (see, for example, (3), [9]) that because of packet loss due to finite buffers at the Ap, upload file transfers obtain larger throughputs than download transfers. We provide an analytical model for estimating the upload and download throughputs as a function of the buffer size at the AP. We provide models for the undelayed and delayed ACK cases for a TCP that performs loss recovery only by timeout, and also for TCP Reno.

Item Type: Conference Paper
Additional Information: Copyright 2009 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Keywords: TCP Over IEEE 802.11 Wlans; TCP Unfairness In Wlans; TCP Modeling
Department/Centre: Division of Electrical Sciences > Electrical Communication Engineering
Date Deposited: 06 Jan 2010 07:00
Last Modified: 19 Sep 2010 05:40
URI: http://eprints.iisc.ernet.in/id/eprint/22099

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