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This paper suggests a new model for the transmission of TCP traffic over IEEE802.11 using the new features of IEEE 802.11ac . The paper examines a firststep in this direction and as such we first consider a single TCP connection,which is typical in a home environment. We show that when the IEEE 802.11ac MACis aware of QoS TCP traffic, using Reverse Direction improves the TCP Goodputin tens of percentages compared to the traditional contention based channelaccess. In an error-free channel this improvement is 20% while in anerror-prone channel the improvement reaches 60%, also using blindretransmission of frames. In our operation modes we also assume the use inTwo-Level aggregation scheme, the ARQ protocol of the IEEE 802.11ac MAC layerand also assume the data rates and the four Access Categories defined in thisstandard.

Coupled IEEE 802.11ac and TCP Goodput improvement using Aggregation and Reverse Direction