Adaptive flow control proxy for enhancing downlink TCP throughput in infrastructure WLANs

WLANs (Wireless Local Area Networks) are widely used for Internet access. But the WLANs in locations such as airports and large conventions usually suffer poor performance in terms of downlink TCP (Transmission Control Protocol) throughput To alleviate these problems, we propose an AFCP (Adaptive Flow Control Proxy) approach, which acts like a TCP Proxy and monitors the traffic flowing through the AP. Using NS-3 simulations, we demonstrate that AFCP can improve the downlink TCP performance, provide good uplink/downlink fairness and promote the total throughput of WLAN.