I'm designing a system that is very similar to wifi and I was wondering how wifi supports multiple devices. I know that the router and the devices have transceivers. So how does the router "talk" to multiple devices at once if it only has one transmitter in its transceiver? Or if it doesn't do it at once , how does it coordinate, I mean devices are constantly talking back and forth with it.... whats the logic in the code?
My logic to go about it is to do the following:
Device sends a request data info to the router with its address postedBut then if multiple devices are constantly sending requests over the same frequency and same channel, then you have interference, so how can you do multiple devices???
Router checks for requests when its free ( aka done transmitting data to the last device that wanted it0
Router sends the data with an address of hte device posted so only that device reads the data
How does wifi do it? How would you do it?