In a collaborative, multiple input, multiple output wireless communication system, a transmitting device transmits a peak-limited pilot signal to a receiving device. The subject invention can be used to deliver x-ray irradiation to an artery in order to prevent restenosis in the artery. The graphical indexing elements have various distinctive characteristics to indicate the status of their respective messaging sessions, such as engaged, non-engaged with no unread messages, or non-engaged with at least one unread message. The pad portion is formed in the recess from the conductive adhesive and connected to an end portion of the wiring pattern. A second selection is made, based on the set of relative coordinate space mappings, to select at least a second transformation for mapping from the intermediate image canonical coordinate space to the second coordinate space using at least a second coordinate change matrix to transform the intermediate image canonical coordinate space.