knowledge, this is one of the first studies to introduce the
draft 802.11ac amendment and analyze its potential benefits
in terms of MAC performance gains as compared to existing
802.11n devices over various frame aggregation mechanisms.
The remainder of this paper is organized as follows. Section
II presents an overview of the key mandatory and optional
PHY features together with the MAC enhancements
of 802.11ac over the existing 802.11n standard. Section III
provides the numerical analysis of 802.11ac and 802.11n MAC
performances in terms of maximum throughput and MAC
efficiency. Section IV validates the numerical analysis with
simulation results, and compares the performance analysis
between 802.11ac and 802.11n over various frame aggregation
mechanisms. Finally, Section V concludes this paper with
some directions for future work