Systems/methods of adaptively varying a bandwidth and/or frequency content of communications

摘要: A bandwidth that is allocated to a transmitted waveform need not be contiguous in frequency space and content of the may vary, as needed, even on signaling interval by basis, order accommodate desired transfer rate, reduce or avoid interference and/or enhance an end user experience. According embodiments invention, set frequencies used provide elements alphabet, form waveform, varied thus varying waveform. time span associated with alphabet also varied. Various transmitter/receiver are disclosed including direct synthesis embodiments.