ELI5: Explain Like I'm 5

Asymmetric phase-shift keying

Okay kiddo, let me tell you about something called asymmetric phase-shift keying. It's a way to send really important information, like messages or pictures, from one place to another using a special kind of code.

You know how when you play with blocks, you can stack them up in different ways to make different shapes? Well, imagine that each block is like a tiny bit of information - maybe it's a letter or a number or a symbol. We can use these blocks to create a code that represents our message or picture.

Now, with asymmetric phase-shift keying, we don't just stack the blocks in one big pile - we arrange them in a special pattern. This pattern has to do with something called the phase of a signal. That basically means whether the signal is at its highest point or its lowest point - kind of like a wave in the ocean.

When we use asymmetric phase-shift keying, we arrange our blocks in a specific way that represents these different phases of the signal. So if the signal is at its highest point, we might use one kind of block, and if it's at its lowest point, we might use a different kind of block.

The really cool thing about asymmetric phase-shift keying is that it lets us send information really quickly and accurately, even over long distances. It's kind of like sending a secret code that only the person who knows the code can understand.

So next time you see a picture on your computer, or send a text message to a friend, you'll know that it's traveling through the air in a special way - with a code that uses something called asymmetric phase-shift keying!