Fluid-based analysis of a network of AQM routers supporting TCP flows with an application to RED
Proceedings of the conference on Applications, Technologies, Architectures, and Protocols for Computer Communication
TCP westwood: end-to-end congestion control for wired/wireless networks
Wireless Networks
TCP Westwood and Easy RED to Improve Fairness in High-Speed Networks
PIHSN '02 Proceedings of the 7th IFIP/IEEE International Workshop on Protocols for High Speed Networks
Markov-based modeling of wireless local area networks
MSWIM '03 Proceedings of the 6th ACM international workshop on Modeling analysis and simulation of wireless and mobile systems
Performance Impact of Interlayer Dependence in Infrastructure WLANs
IEEE Transactions on Mobile Computing
Throughput Analysis and Measurements in IEEE 802.11 WLANs with TCP and UDP Traffic Flows
IEEE Transactions on Mobile Computing
TCP Veno: TCP enhancement for transmission over wireless access networks
IEEE Journal on Selected Areas in Communications
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There have been a number of TCP variants proposed in the literature to combat random packet losses in wireless networks. In this paper we first perform a simulation study on the performance of these TCP variants in the context of IEEE 802.11 WLAN with various channel conditions, generated using different wireless error models and show that none of the existing TCP variants has superior performance over the conventional TCP in such WLANs. We also observe that in IEEE 802.11 WLAN efficiency problem with TCP protocols only exists when the number of active wieless nodes is small and the channel condition is extremely bad. We further demonstrate that employing the delayed ACK mechanism and SACK option at the TCP receiver can generally improve the performance. With the option to modify the TCP implementation at the receivers we further propose TCP-WOW algorithm, which estimates the flow queue size on the forward path and further uses such estimates as quantitative indication of the congestion level to dynamically guide the congestion response. TCP-WOW is robust to reverse traffic interactions. TCP-WOW also shows a better RTT fairness and consistently good performance in our IEEE 802.11 WLAN simulations.