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Optimizing Aggregate Throughput of Upstream TCP Flows Over IEEE 802.11 Wireless LANS

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Overview This paper via analysis and simulation revisits the interaction between MAC contention and TCP congestion control over IEEE 802.11 WLANs, misled in the previous efforts. The results reveal that the effective number of contending wireless stations is not proportional to the number of wireless stations with an upstream TCP flow in IEEE 802.11 wireless LANs. Thus, the paper proposes a new scheme called TCP ACK Priority (TAP) in which, by allowing an access point to transmit TCP ACKs at the highest priority, the optimal number of competing stations are allowed to contend for media access to utilize link bandwidth efficiently. The paper uses an ns-2 simulator to evaluate the performance of TAP with the IEEE 802.11 DCF.

Further White Paper Details
Publisher	Institute of Electrical and Electronics Engineers	File Format	PDF
Date Published	July 2007
Format	White Papers
Topics	Wireless LAN, TCP - IP, Wi-Fi (802.11)

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