Shared access, cognitive radio and transition issues

After a demonstration of the inefficiency of the actual system in Europe, our paper explores the regulatory reform required in the transition towards a ‘shared access spectrum’. It introduces the new spectrum management system paradigm based on recent emerging concepts, i.e. Collective Use of Spectrum (CUS), Authorized Shared Access (ASA), Licensed Shared Access (LSA), which have been developed to allow a more efficient use and management of the spectrum resource. Then, we determine objectives to reach to sustain future connected word and we analyze the different obstacles that prevent the transition. The main objectives are: dynamic and collaborative use, non discriminatory use, incentives to promote efficient use from spectrum holders. To conclude we explore the importance of competition policy in transitioning spectrum management system. This may create a tool for government intervention in the transition to a collaborative spectrum use.