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by JPLeRouzic 3316 days ago
In theory, that is not necessary, you can transmit information even if the spectrum is completely saturated, by using Wi-Fi backscatter like in: http://passivewifi.cs.washington.edu/

You neighbour's 802.11b will never see that another Wi-fi network piggybacks on him and goes 100 times faster. There is even not the need to use the cumbersome CSMA/CA.

Indeed it is not an existing amendment, but if you are interested I would be happy to help someone to present a few ideas at IEEE 802.11.