A power control algorithm based on Dyna-Q learning for ultra-dense networks

Abstract

With ultra-dense networks, the large number of densely deployed low-power base stations creates more serious interference problems for the network. To address this problem, we introduce Dyna-Q learning into the power control problem of ultra-dense networks and propose a power control algorithm based on Dyna-Q learning. Firstly, we build an experience pool to store the state and selected actions of the agent during the operation; Secondly, the agent observes the current state, uses an action selection strategy to choose the next action, and then interacts with the environment to update the Q table; Finally, the agent learn again based on the virtual experience provided by the experience pool. The simulation results show that the normalized capacity of the method in this paper is improved by 0.88b/s/Hz on average and the resource consumption is reduced by 9.9% on average compared with the existing methods.