Carrier Frequency — 802.11ad is an amendment to
802.11 for enhancements for multi-gigabit
throughput in 60 GHz band. Figure 3 depicts the
spectrum allocation for unlicensed operation at
60 GHz. In this band, typically 7 GHz of spectrum
is available for unlicensed usage compared
to 83.5 MHz in 2.4 GHz band. This standard
defines 4 channels, each with 2.16 GHz bandwidth,
for operation at 60 GHz band. These
channels are 54 times wider than the 40 MHz
bonded channels available in 802.11n.