Transitioning to Hybrid Radio/Optical Networks: Development of a Flexible Visible Light Communication Testbed. - Alexander McBride; Burim Derveni; Jeffrey Proko; Pekka Kamsula; Helal Chowdhury; Tuomo Hänninen; Juha-Pekka Mäkelä; Marcos D. Katz (5GU, 2014)