Professor MacKenzie was awarded an E.T.S. Walton Visitor Award from the Science Foundation of Ireland for the 2012-2013 academic year. This award will enable him to spend the 2012-2013 academic year on study-research leave from Virginia Tech. During the year, he will be based at CTVR: the telecommunications research centre at Trinity College Dublin. Professor MacKenzie will be working, broadly, on technology and policy solutions for dynamic spectrum sharing in wireless networks and economic models of such solutions. More specifically, he will be studying automated spectrum negotiation between autonomous radio systems.