DYNAMIC SPECTRUM ALLOCATION: FROM CONCEPTS TO RECONFIGURABILITY ENABLED IMPLEMENTATION

This paper presents the current research eort in the eld of dynamic spectrum allocation (DSA) in the context of composite recongurable wireless networks. Concepts and implementation issues are respectively addressed. Firstly, motivations and supporting mechanisms of the DSA concept are introduced in Section 2. On this basis, some potential deployments scenarios for DSA and their associated requirements are discussed in Section 3. The enabling technologies (software dened radio, SDR) and regulatory policies supporting recongurable equipment are discussed in Sections 4 and 5 respectively. Section 6 addresses an architecture model supporting recongurable systems DSA at the network level. Finally, Section 7 discusses a potential roadmap to make DSA operations a reality. K e y w o r d s: recongurable wireless networks, dynamic spectrum allocation, software dened radio