wireless network are becoming more popular as more and more devices are being made available. the issue if easy implementation does not have to be overruled. wifi network are used in corporate firms. wifi comminucation is only approved to transmit on specific frequencies, in most parts of the world these are the $2\mathrm{.}4$ghz and $5$ghz frequency bands, although many countries are now adding $6$ghz frequencies as well. these frequency band are not the same cellular network use, so cell phones and wifi are not in competition for use of the same frequency.

please explain in details how does wifi network work