Single-carrier FDMA

Single-Carrier FDMA is a way of using radio waves (like the ones in your TV or Wifi) to send information from one thing to another. Think of it like a highway: there are lots of cars all driving around and you don't want them to crash into each other and mess up the traffic. This is why on highways there are lanes for different types of vehicles. Single-Carrier FDMA works like this -- it takes radio waves and divides it up into different lanes so that different kinds of information can be sent at the same time without interfering with each other. This is really important, because it means that more information can be sent faster and more reliably.