This paper suggests a new model for the
transmission of Transmission Control Protocol (TCP) traffic over IEEE 802.11
using the new features of IEEE 802.11ac. The paper examines the 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
Automatic Repeat-Request (ARQ) protocol of the IEEE 802.11ac MAC layer, the
data rates and the four Access Categories defined in this standard.
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