On 05/19/2017 12:31 AM, John Andersen wrote:
It can't transmit & receive at the same time, the way Ethernet can. 802.11n uses multiple channels, and can easily achieve 450Mbps, and 802.11ac achieves three times that.
Also true full duplex has been demonstrated and is in the near future. Google it.
Can you point to any available equipment? The only way you're likely to see full duplex is with dual band equipment, with one band used for each direction. The issue when using the same band is keeping the transmitter power from overwhelming the receiver. In other areas, there are radio devices that can run full duplex, by using some method to keep the transmit power out of the receiver. A common method is to use different frequencies, sufficiently far apart that filters can provide sufficient isolation. When I did that search, all that turned up was references to lab experiments, which are quite a way from real world. Bottom line, any WiFi gear that can be bought today is half duplex, so part of the time is spent transmitting and part receiving. Incidentally, with full duplex, both ends have to support it, so that means both the access point and the computer or other device. BTW, O'Reilly has some good books on WiFi that cover all the gory details. There's one that covers 802.11b & g, with supplements that cover n and ac. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org