This work presents how the spectrum regulation could change in the future open spectrum communication systems.
Due to their huge success in short-range communication systems (WiFi, Zigbee,…), broader area telecommunication providers might mimic the open spectrum philosophy to their systems. Nevertheless, current wireless open spectrum systems are not designed for wide areas and they do not provide QoS to their users. This work proposes an alternative to the nowadays open spectrum systems in order to fulfill those requirements.
Optimal beamforming transmission strategies are derived. Numerical results show the performance of the proposal.
Ana I. Pérez-Neira is full professor at UPC (Technical University of Catalonia) in the Signal Theory and Communication department. Her research field is signal processing applied to wireless communications (both mobile and satellite). She has been the leader of 18 projects (7 international and 11 national). She is author of more than 25 journal papers (SCI indexed) and 150 conference papers (18 invited). She is co-author of 4 books and 4 patents. She teaches graduate and undergraduate courses in: statistical signal processing, analog and digital communications, mathematical methods for communications and nonlinear signal processing. Her research topics are in: multi-antenna signal processing, physical layer scheduling in multicarrier systems and satellite communications. She has been in the board of directors of ETSETB (Telecom Barcelona) from 2000-03 and currently she is vicepresident for research at UPC. She is member of Eurasip Adcom (European Signal Processing Association) and of IEEE SPTM (Signal Processing Theory and Methods). She has been visiting professor at KTH (Royal Institute Stockholm) during 6 months and at Shandong University (China) during 1 month. She is editor of JASP (Journal of Advances in Signal Processing of Hindawi) and reviewer of various journals and organizations. She has chaired 2 international conferences, IWCLD09 and EUSIPCO 2011, and participated in the organization of other 2 (ESA conference’96, SAM’04).