Wavelet modulation: a prototype for digital communication systems

The wavelet transform has had an explosive development as a powerful tool of signal representation. It has been used successfully in many fields such as image processing, data compression and signal processing. Due to the fact that a wavelet can be chosen from a flexible class of analysis functions with different time-frequency localization properties, its performance surpasses that of the Fourier transform when dealing with transient, or time localized signals. It also has some applications in communication systems. The authors discuss the possibility of using wavelet functions in a digital communication system. It is shown to possess advantages of bandwidth, noise performance and complexity of synchronization.