Multidimensional modulation is a research area in signal processing and communication systems that focuses on encoding information using multiple dimensions or parameters simultaneously. Traditional modulation schemes, such as Amplitude Modulation (AM) or Frequency Modulation (FM), only encode information in a single dimension of the signal. Multidimensional modulation aims to increase the data rate and efficiency of communication systems by encoding information in multiple dimensions, such as phase, amplitude, frequency, and time. Multidimensional modulation techniques often involve complex mathematical algorithms and signal processing methods to manipulate and encode information in these multiple dimensions. By utilizing multidimensional modulation, communication systems can achieve higher data rates, increased spectral efficiency, improved signal-to-noise ratio, and enhanced communication reliability. This research area is continuously evolving, with new and advanced modulation schemes being developed to further improve the performance of communication systems.