Relay vs. Repeater Architectures in WiMAX. - Iraklis Georgas; Ioannis Petropoulos; Konstantinos N. Voudouris; Panagiotis Tsiakas; Nikos Athanasopoulos; Mikael V. H. Cohen; Baruch Cyzs; George Agapiou; Andreas Rigas (MobiMedia, 2010)