FREQUENCY SPECTRUM PREDICTION METHOD AND APPARATUS FOR COGNITIVE WIRELESS NETWORK

    公开(公告)号:US20200128473A1

    公开(公告)日:2020-04-23

    申请号:US16619207

    申请日:2017-10-23

    Abstract: The embodiment of the present application provides a method and apparatus for spectrum prediction in a cognitive radio network. The method comprises: receiving a target access request from a secondary user; obtaining real-time occupancy information of bands through a subspace filtering-based spectrum sensing approach; updating a spectrum resource database of radio environment maps (REM) according to the real-time occupancy information of bands; establishing a prediction model for bands occupied by primary users according to the updated spectrum resource database of radio environment maps (REM); and allowing an access of the secondary user to a target band according to the prediction model for bands occupied by primary users. The method and apparatus provided by embodiments of the present application allow a secondary user to have a targeted spectrum access. The spectrum utilization efficiency of the radio network can thus be improved.

Patent Agency Ranking