This figure uses four separate illustrations as examples of various multiple access channels. The top left example is headed "Shared wire (for example, cable access network)." It shows the outline of a station, labeled "Head end," and a system of wires extending to neighborhood of houses. The top right example is headed "Shared wireless (for example, WiFi)." It shows a router connected to a wireless base station, which is sending wireless signals to three laptops. The bottom left example is headed "Satellite," and shows three satellite dishes interacting with a floating satellite. The bottom right example is headed "Cocktail party," and shows to men speaking to each other while a woman dozes.