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The promise of 802.11ax – What should we expect?
Posted by Jatin Parekh on Jun 18, 2018
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What is new in 802.11ax
802.11ax promises a lateral progression of the WiFi standard. Until now, all new WiFi specifications were focused on improving the peak data rates. 802.11ax takes a side step and promises higher efficiency rather than higher peak rates. It promises to improve the total throughput in a cell and deliver more data to the clients rather than try to improve the speed at which the data is transmitted. 802.11ax features will be available in 2.4 GHz band as well (as opposed to 802.11ac which was available only in 5GHz).

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Why 802.11ac Wave 2? Speed and Capacity
Posted by Robert Ferruolo (Dr. RF) on Jun 22, 2016

WiFi, like walkie-talkies, uses a shared medium. Only one device can effectively transmit at a time. When two people talk on walkie-talkies at the same time, neither is understood. The serial nature (one transmission at a time) limits the capacity of the channel. Capacity can be increased by having users talk faster, or by compressing what is said by using abbreviations for words or phrases. (OMG, this blog post has TMI!)