Why Discrete Multi-tone Modulation?
Discrete multi-tone modulation, or DMT, is a modulation method often used for transmitter-receiver systems that have extremely poor channel characteristics. In our case, we are using a string and tin-can telephone; one of those toys that you may know as a childhood novelty where two people can communicate with each other by attaching the ends of a string to the bottoms of two tin cans and having one person speak into one can while the other listens. The string used to communicate between the two cans is a very bad channel for data transmission, which is why you cannot always distinctly understand what someone is trying to say in a tin-can telephone. That’s where DMT should come in.
