A system, method and apparatus for wireless communications are provided. In an exemplary embodiment, frequency components present in a short duration modulated complex pulse is used to represent data to be sent. In other embodiments, the complex pulse is created, modulated, then modified to have desirable frequency characteristics. This Abstract is provided for the sole purpose of complying with the Abstract requirement rules that allow a reader to quickly ascertain the subject matter of the disclosure contained herein. This Abstract is submitted with the explicit understanding that it will not be used to interpret or to limit the scope or the meaning of the claims.