A system and method for transmitting a digital signal comprising includes a random number generator for generating a pseudorandom code. A scheduler stores a plurality of signal sequences each matching a set of bandwidth-time products and center frequencies with a stored code. The scheduler selects a signal sequence by matching the pseudorandom code with one of the stored codes. The scheduler selects a bandwidth-time product and center frequency based on the selected signal sequence. A baseband processing unit generates the digital signal based on a selected bandwidth-time product and center frequency. A front end processing and beamforming unit broadcasts the digital signal.