Effective and Precise Estimation of Unused Frequency Bands

Utilization status of frequency bands changes over time and from place to place. We can obtain exact status of frequency bands by putting a huge number of sensors to all locations with enormous costs. To reduce costs, we are studying "Local White Space Estimation utilising Heterogeneous Types of Sensors". Unused frequency bands are precisely estimated with a few types of sensors and radio propagation estimation.

This research was performed under research contract of “Research and Development on Technology to Accelerate Effective Utilization of Local White Space using Radio Environment Big Data”, for Strategic Information and Communications R&D Promotion Programme of the Ministry of Internal Affairs and Communications, Japan.