AICT 2013 The Ninth Advanced International Conference on Telecommunications ISBN: 978-1-61208-279-0 June 23 - 28, 2013 Rome, Italy AICT 2013 Editors Michael D. Logothetis, University of Patras, Greece Mariusz Glabowski, Poznan University of Technology, Poland Dragana Krstic, University of Nis, Serbia 1 / 247