White Papers

TCP Dynamics Over IEEE 802.11e WLANs: Modeling and Throughput Enhancement

Tags: ip

Overview Today, IEEE 802.11 Wireless LAN (WLAN) has become a prevailing solution for broadband wireless Internet access while Transport Control Protocol (TCP) is the dominant transport protocol in the Internet. It is known that, in an infrastructure-based WLAN with multiple stations carrying long-lived TCP flows, the number of stations that are actively contending to access the channel is very small. Therefore, the aggregate TCP throughput is basically independent of the total number of stations. This phenomenon is due to the closed-loop nature of TCP flow control and the bottleneck downlink (i.e., AP-to-station) transmissions in infrastructure-based WLANs. This paper conducts a rigorous, comprehensive analysis of the TCP dynamics over the 802.11e EDCA.

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Publisher: Seoul National University
File Format: PDF
Date Published: Dec 20, 2007
Format: White Papers
Topics: Wi-Fi (802.11), Wireless LAN, TCP - IP

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