  This paper suggests a new model for the transmission of TCP traffic over IEEE
802.11 using the new features of IEEE 802.11ac . The paper examines a first
step 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 MAC
is aware of QoS TCP traffic, using Reverse Direction improves the TCP Goodput
in tens of percentages compared to the traditional contention based channel
access. In an error-free channel this improvement is 20% while in an
error-prone channel the improvement reaches 60%, also using blind
retransmission of frames. In our operation modes we also assume the use in
Two-Level aggregation scheme, the ARQ protocol of the IEEE 802.11ac MAC layer
and also assume the data rates and the four Access Categories defined in this
standard.
