Dynamic Spectrum Allocation Algorithm for Cognitive Networks

Future wireless communications will benefit from cognitive functionalities, operated by reconfigurable networks and terminals. In a context where any parameter could be adapted dynamically in an "always best connected" perspective, the spectrum allocation flexibility would be a powerful feature. In this paper, we study the technical feasibility of dynamic spectrum allocation in a multi-technology and multi-operator context. Firstly, the generic technical approach will be described; secondly, an algorithm, inspired by the cognitive radio cycle will then be proposed. An example of DSA simulation with legacy systems will be presented, in order to underline the algorithm validity.