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Securing K-12 WiFi - A Scary Movie Blog
Posted by Louise Peter on Oct 31, 2017

It is a classic urban legend horror scene - a young woman is home alone (she is usually a babysitter). She receives creepy phone calls asking "Have you checked the kids?" The babysitter calls the police and the police set up watch outside the house to keep the babysitter safe. The police trace the phone calls and to their horror, they discover that the calls are not coming from another location, but they are coming from inside the house.

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802.11ax: Optimistic CSMA for Efficient Channel Reuse in WiFi
Posted by Hemant Chaskar on Jul 9, 2016

802.11ax is the new 802.11 standard currently in the making. Unlike earlier 802.11 standards that mainly focused on increasing raw link speeds, the design objective now is to increase airtime efficiency. One feature it introduces is OFDMA (Orthogonal Frequency-Division Multiple Access) to address the airtime inefficiency caused by short WiFi frames. The other is dynamic sensitivity control, which modifies traditional CSMA (Carrier Sense Multiple Access) to address airtime inefficiency caused by co-channel interference during channel reuse.

802.11ax: Fighting the Menace of Small Frames for Efficient WiFi
Posted by Hemant Chaskar on Apr 8, 2016

802.11ac Wave 2 is rising fast, as legacy 802.11n networks are upgraded. Current 802.11ac Wave 1 networks may not upgrade to Wave 2 right now, but by the time these networks have hit their typical 4-5 year lifespan, the next WiFi standard will be available: 802.11ax.