1. A method for controlling a combined waveform, representing a combination of at least two signals, comprising: receiving information defining each of the at least two signals, each signal presenting a set of orthogonal components according to a respective communication protocol for communication to a respective communication protocol compliant receiver, the at least two signals not being mutually orthogonal; transforming the information defining each signal such that at least one signal has at least two alternate representations of the same information adapted for communication to the respective communication protocol compliant receiver, and combining the transformed information using the at least two alternate representations, in at least two different ways to define respectively different combinations, the at least two different combinations each being adapted for communication of the at least two signals to the respective compliant receiver according to the respective communication protocol, without further communication of information defining the transformation; analyzing the respectively different combinations with respect to at least one criterion; and outputting information representing a respective combined waveform comprising a selected combination of the transformed information from each of the at least two signals selected based on said analyzing.