I have a few questions related to WiFi routers/access points. Regardless of the WiFi technology implementation a,b,g,n,ac... I think the underlying protocol for channel assignments are similar, but please correct me if my understanding is wrong.
If I have a single WiFi AP/Router setup at home, and I have multiple clients connected to it, i.e. my cellphone, my tablet, my chromecast etc, all of them will have independent WiFi channel assignments or separated? For example, will all my devices be assigned to WiFi channel 4 with all of them sharing the 20MHz bandwidth assuming 802.11g technology?
Is all my devices connected will be limited by the 20MHz channel bandwidth, i.e. ~54Mbps between all my devices? This is regardless of my ISP internet speed for now.
What parameters within the WiFi router/AP determines how many simulataneous devices that can be connected to it, before all the devices attached bogs everybody down? Is it only the data throughput of the channel?
Please help me out