HANNA BOGUCKA, PhD, is a professor at Poznan University of Technology (PUT) in Poznañ, Poland, where she has taught for more than 25 years. She is the co-editor of Opportunistic Spectrum Sharing and White Space Access: The Practical Reality (Wiley, 2015). ADRIAN KLIKS, PhD, is an assistant professor at PUT. He has taught laboratory courses on Radio Communications and Programming of Mobile Devices. PAWEŁ KRYSZKIEWICZ, PhD, is an assistant professor at PUT where he has taught laboratory courses on Radio Communications and Programming.