I have in my short WiFi life thought when an 802.11 station (WiFi) does carrier detect it would detect all parts of an ongoing frame transmission on the channel and defer its own transmission because of that. But it seems my understanding has been wrong.
The last week’s online discussions has open my eyes to another look at the protocol and the importance of detecting the 802.11 preamble.
In this article I will write about the uniqueness of the 802.11 preamble, how important it is to detect it and how long it travels
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