WIFI
end user connects to a
local access point (base station) with IEEE s WiFi technology, which is then connected to internet.
Wireless access points at 11, 54, 450 Mbps
3G or LTE
Provided by mobile, cellular network operator
Summarization of a Home Network
Wireles device > Base station > Router > DSL modem > Cable Head End
Wried Ethernet device > Router > DSL modem > Cable Head End
Physical Media
Physical link is what lies between transmitter & receiver
Bit is sent by propagating electromagnetic
waves or optical pulses
across a physical medium.
Examples of physical media include twisted-pair copper wire, coaxial cable, multimode fiber-optic cable, terrestrial radio spectrum, and satellite radio spectrum.