Impact of Software Radio on Efficient Spectrum Sharing

The radio spectrum is a limited resource shared by various types of services, for some of which the allocation of frequencies was decided several decades ago. Since, then, a drastic progress has been accomplished in technology. As a consequence, a much more efficient use of the frequency spectrum can be contemplated. SDR techniques seem to have considerable potential in solving today’s disarrayed frequency allocation and therefore efficient and flexible frequency management as described in this article.