Dynamic spectrum access method based on bidirectional long-short-term memory network

The invention discloses a dynamic spectrum access method based on a bidirectional long-short-term memory network, belongs to the technical field of cognitive radio, and aims at solving the problems that the existing spectrum sharing use method does not consider the dynamics and incomplete observability of spectrum resources and is single in application. The method comprises the steps that under the condition of orthogonal frequency division multiple access, each channel is fixedly distributed to a main user, the main user transmits information according to an autonomous access strategy, a secondary user predicts the channel occupation state according to historical action data in each time slot, and one unoccupied channel is selected to transmit information; the secondary user information transmission method comprises the following steps: optimizing a DQN reinforcement learning algorithm by adopting a bidirectional long-short-term memory network to form a DBRQN algorithm model; the historical action data is in